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8 Letter Words Starting With A

Explore 3,587 English words that start with A and contain exactly 8 letters. Common examples include abundant, although, approach, advocate, assemble.

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8-Letter A Words by Ending Letter

All 3,587 8-Letter Words Starting With A

aamchoorAlternative form of amchur.aandblom(South Africa) Any of several, typically evening blooming, flowers related to the Iris, in particular of the genus Hesperantha.aardvarkThe nocturnal, insectivorous, burrowing mammal Orycteropus afer, of the order Tubulidentata and somewhat resembling a pig. Common in some parts of sub-Saharan Africa.aardwolfA nocturnal, insectivorous mammal (Proteles cristatus), having yellowish fur with vertical black stripes, and a long mane down the midline of the neck and back; it is related to and resembles the hyena, and is native to eastern and southern Africa.aasvogel(South Africa, rare, literary) Vulture.aatheist(informal, humorous) A person who does not believe in the existence of atheists.aavakayaAlternative form of aavakaaya.abacatesplural of abacate abacavir(pharmacology) An antiretroviral drug (trademark Ziagen) taken orally in the form of its sulfate (C₁₄H₁₈N₆O)₂·H₂SO₄ in combination with other antiretroviral drugs to treat HIV infections. It is a synthetic nucleoside analog that acts by inhibiting reverse transcriptase. It causes potentially serious hypersensitivity reactions in a small percentage of patients.abaction(law) Carrying away by force, especially of animals.abaculus(archaic) A small tile of glass, marble, or other substance, of various colors, used in making ornamental patterns in mosaic pavements; abaciscus.abacusesplural of abacus abakwetaAlternative form of abakwetha.abalonesplural of abalone abampereUnit of electrical current in electromagnetic and Gaussian cgs systems of units, equal to 10 amperes in SI units.abamurus(rare) A retaining wall; a wall erected to strengthen another wall.abanallyIn an abanal manner abandonsplural of abandon abapical(biology) Of or pertaining to something at its lowest point; designating the part opposite to the apex.abarelixA drug that is an injectable gonadotropin-releasing hormone antagonist.abasedlyIn an abased manner; abjectly.abashingTending to abash; causing embarrassment or the loss of self-possession.abastardTo abastardize.abatableCapable of being abated.abatisedProvided with an abatis.abatisesplural of abatis abatjourAlternative spelling of abat-jour.abatsonsA device for directing sound downward. Sounding board.abattage(veterinary medicine medicine) The slaughter of animals, especially diseased ones to limit the spread of the disease.abattoirA public slaughterhouse for cattle, sheep, etc.abatvoixAlternative form of abat-voix.abaxonal(anatomy) Far from an axon abbaciesplural of abbacy abbatessObsolete form of abbess.abbatialBelonging to, relating to, or pertaining to an abbey, abbot, or abbess.abberantMisspelling of aberrant.abbessesplural of abbess abbotessObsolete form of abbess.abbotric(obsolete) An abbacy.abdelaviA variety of muskmelon from North Africa and Arabia, Cucumis melo.abderianFoolish; absurd; ridiculous; inclined to incessant merriment or laughter.abdicantOne who abdicates.abdicate(transitive, obsolete) To disclaim and expel from the family, as a father his child; to disown; to disinherit.abditive(rare) Having the quality of hiding abditory(rare) A concealed location used for storage or to hide items.abdomensplural of abdomen abducens(anatomy) Ellipsis of abducens nerve.abducentThat which abducts.abducingpresent participle and gerund of abduce abductedsimple past and past participle of abduct abducteeAn abducted person, in particular a person abducted by aliens.abductin(biochemistry) An insoluble elastic protein found in the hinge ligament of bivalve mollusks.abductorOne who abducts; a kidnapper.abearingpresent participle and gerund of abear abelmoskThe edible and aromatic seed pods (properly, capsules) of the Abelmoschus moschatus.abelmusk(obsolete) Alternative form of abelmosk in its various senses.abeltreeA Eurasian tree, Populus alba, that is widely cultivated in North America.abelungu(South Africa, now chiefly derogatory) White people collectively.abequose(biochemistry) The deoxy sugar 3,6-dideoxy-D-xylo-hexose.aberrantDiffering from the norm.aberrate(intransitive) To go astray; to diverge; to deviate (from); deviate from.abessive(grammar) Of, or relating to the grammatical case used in some languages to indicate absence.abetmentEncouragement or assistance.abettersplural of abetter abettingpresent participle and gerund of abet abettorsplural of abettor abeyance(law) Expectancy; a condition when an ownership of real property is undetermined; lapse in succession of ownership of estate, or title.abeyancy(rare) Abeyance.abgooshtAlternative form of abgusht.abhesivenot adhesive; slippery.abhinaya(dance) Use of the face and hands, in an expressive manner, similar to the kathakali dance of India.abhisekaAlternative spelling of abhisheka.abhoringMisspelling of abhorring.abhorredsimple past and past participle of abhor abhorrerOne who abhors.abhurite(mineralogy) A soft mineral composed of tin, oxygen, hydrogen, and chlorine.abhyangaA form of Ayurvedic medicine that involves massage of the body with warm oil.abichite(mineralogy) Synonym of clinoclase.abidableAlternative spelling of abideable.abidanceThe act of abiding or continuing; abode; stay; continuance; dwelling.abietane(organic chemistry) A diterpene hydrocarbon that is the structural basis for many natural products abietate(organic chemistry) Any salt or ester of abietic acid; resinate.abietene(organic chemistry) A volatile oil distilled from the resin or balsam of the nut pine (Pinus sabiniana).abietineAlternative spelling of abietin.abietite(organic chemistry) A substance resembling mannite, found in the needles of the common silver fir of Europe (Abies alba).abilitieObsolete spelling of ability.abiocoenThe non-living components of an environment, such as water, soil, air, etc.abiogeny(evolutionary theory) abiogenesis.abiology(sciences) The sciences, such as geology and astronomy, that collectively deal with inorganic or lifeless bodies.abitraryMisspelling of arbitrary.abjectedsimple past and past participle of abject abjectlyIn an abject fashion; with great shame; desperately.abjugate(obsolete, transitive) To unyoke; set free; uncouple.abjuringpresent participle and gerund of abjure ablacted(obsolete) weaned ablastin(immunology) An immunoglobulin G antibody efficient against some protozoans, specifically Trypanosoma lewisi, by preventing reproduction.ablatingpresent participle and gerund of ablate ablation(surgery) The surgical removal of a body part, an organ, or especially a tumor; the removal of an organ function; amputation.ablative(medicine) Relating to the removal of a body part, tumor, or organ.ablegate(transitive, obsolete) To send abroad.ablemost(obsolete) ablest (most able)ableness(uncountable, now rare) Ability of body or mind.ablepsia(medicine, rare) Lack of sight; blindness.abligate(obsolete outside veterinary medicine) To tie up, especially a body part.ablukast(pharmacology) A leukotriene antagonist used in the treatment of inflammatory skin conditions.ablutionThe act of washing something.ablutiveAblutionary, intended for or engaged in abluting.abluvion(Late Modern, obsolete, rare) That which is washed off.abnegate(transitive) To deny (oneself something); to renounce or give up (a right, a power, a claim, a privilege, a convenience).abnerval(anatomy, of an electric current in a muscle, rare) Away from the nerve.abneuralAway from the neural (cerebrospinal) axis abnormalNot conforming to rule or system; deviating from the usual or normal type.abnormie(slang) An abnormal person.abodance(obsolete) An omen or portent.abogeninAn organic compound found in Adenium boehmianum.aboideau(Canada, Acadia) A tide gate, designed to protect marshland, so constructed as to let out water at low tide, but to prevent an influx of water at high tide.abolishtObsolete spelling of abolished; simple past and past participle of abolish.abomasalBelonging to or involving the abomasum.abomasum(biology, food) The fourth digestive compartment of the stomach of a cow or other ruminant, after the omasum;abomasusAlternative form of abomasum.aborallyIn an aboral way; away from the mouth.abordage(archaic) The act of boarding a ship as part of an attack.aborgoin(US, dialectal, rare) An aboriginal inhabitant; a Native American.aborigenAlternative form of aborigin aborigin(obsolete) Aboriginal.aborishaA devotee of the orishas; a practitioner of Yoruba religion.aborning(chiefly Canada, US) That is in the process of being born; coming into existence; before coming to completion.aborsive(obsolete) abortive from the first.abortingpresent participle and gerund of abort abortion(medicine) The expulsion from the womb of a foetus or embryo before it is fully developed, with loss of the foetus.abortiveComing to nothing; failing in its effect. .abouliasplural of aboulia aboundedsimple past and past participle of abound abounderOften followed by in: one who abounds in something; one who has plenty.abrachia(medicine) The congenital absence of both arms abradantA material used for grinding, as emery, sand, powdered glass, etc.; an abrasive.abradersplural of abrader abradial(anatomy) Relating to the outer radius abradingpresent participle and gerund of abrade abrasionThe act of abrading, wearing, or rubbing off; the wearing away by friction.abrasiveProducing abrasion; rough enough to wear away the outer surface.abrasure(dated) Abrasion, abrading.abrationMisspelling of abrasion.abraxaneA form of paclitaxel combined with an albumin abrecockObsolete form of apricot.abricock(obsolete) apricot abridgedCut or shortened, especially of a literary work.abridgerOne who abridges, a person who shortens written works.abridgesthird-person singular simple present indicative of abridge abrocomeEither of the ratlike rodents that form the genus Abrocoma; rat chinchilla.abrogate(transitive) To put an end to; to do away with.abrotineA colorless crystalline alkaloid obtained from abrotanum, C₂₁H₂₂N₂O.abruptic(geology) Characterised by an abrupt change in texture.abruptio(music) An abrupt pause or stop; an abruption.abruptlyIn an abrupt manner; without giving notice, or without the usual forms; suddenly; precipitously.abscisedsimple past and past participle of abscise abscisicOf or pertaining to abscisic acid or its derivatives.abscisinAlternative spelling of abscissin.abscissa(geometry) The horizontal line representing an axis of a Cartesian coordinate system, on which the abscissa (sense above) is shown.absconceA dark lantern used in church to read prayers etc during a service.abscondsthird-person singular simple present indicative of abscond absconsa(historical) A kind of dark lantern.abscopalDenoting the effect that irradiation of a tissue has on remote nonirradiated tissue.abseilerSomeone who abseils.absencesplural of absence absentedsimple past and past participle of absent absenteeA person who is absent from his or her employment, school, post, duty, etc.absenterOne who stays away; one who absents herself or himself.absentlyIn an absent-minded or abstracted manner.absintheThe herb absinthium Artemisia absinthium (grande wormwood); essence of wormwood.absoleteObsolete form of obsolete.absoluteFree of restrictions, limitations, qualifications or conditions; unconditional.absolvedsimple past and past participle of absolve absolvesthird-person singular simple present indicative of absolve absonant(now rare) Discordant; harsh; contrary; unreasonable.absonous(obsolete) Discordant; inharmonious; incongruous.absorbedFully occupied with one's thoughts; engrossed.absorberSomething that absorbs.abstainsthird-person singular simple present indicative of abstain absterge(transitive, archaic, now rare) To make clean by wiping; to wipe away.absterse(transitive, now rare) To absterge; to cleanse; to purge away.abstractAn abridgement or summary of a longer publication.abstrict(transitive, biology, mycology) To cut off, as in abstriction; abjoint abstrude(obsolete, transitive) To thrust away.abstruseDifficult to comprehend or understand; obscure.absurdercomparative form of absurd: more absurd absurdlyIn an absurd fashion.absurdumAn illogical conclusion or state.abugidic(rare) Of or relating to an abugida.abumbralAlternative form of exumbrellar.abundantFully sufficient; found in copious supply; in great quantity; overflowing.abundary(obsolete, rare) An overflowing, a cornucopia, an abundant source.aburaageA Japanese food consisting of deep-fried slices of tofu.abusableCapable of being abused.abusedlyIn an abused manner.abuseful(rare) Full of abuse; abusive.abusiousAlternative form of abusive.abutilonAny of the various tropical flowering plants of the genus Abutilon, such as the flowering maple, Indian mallow, or Chinese lantern.abutmentThe point of junction between two things, in particular a support, that abuts.abuttalsplural of abuttal abuttersplural of abutter abuttingFacing each other, front to front.abvalvarAway from the valve (of a mollusc)acacetinA glycoside forming in the leaves of the common locust tree; C₁₆H₁₂O₅.academesplural of academe academia(collective) The scientific and cultural community engaged in higher education and research, taken as a whole.academicBelonging to the school or philosophy of Plato.acalepheAlternative form of acaleph.acalephsplural of acaleph acaloricNot caloric (containing no calories)acalycal(botany, of a stamen) Not attached to a calyx acalyphaAny plant of the genus Acalypha of flowering plants, found in tropical and subtropical environments.acampsia(pathology) Rigidity of a joint.acanthadA plant that is a member of the family Acanthaceae.acanthin(zoology, dated) strontium sulfate, the main constituent of the skeletons of the Acantharea acanthorThe spindle-shaped embryo stage of Acanthocephala that burrows into the body cavity of its first intermediate host.acanthusA member of the genus Acanthus of herbaceous prickly plants with toothed leaves, (family Acanthaceae, order Lamiales (formerly Scrophulariales)) found in the south of Europe, Asia Minor, and India.acapellaMisspelling of a cappella.acapnialOf or relating to acapnia.acarbose(pharmacology) An antidiabetic drug C₂₅H₄₃NO₁₈ (trademark Precose) that is taken orally as a tablet in the treatment of type 2 diabetes. It is an oligosaccharide produced by fermentation of a bacterium (Actinoplanes utahensis). The drug slows the absorption of glucose in the small intestine by inhibiting enzymes that break down complex carbohydrates.acardiac(medicine, anatomy) Lacking a heart.acardite(organic chemistry) n-methyl-n',n'-diphenylurea, used to stabilize chemicals and as a plasticizer.acaridanSynonym of acarid.acarpous(botany) Not producing fruit; unfruitful; sterile.acathistAlternative form of akathist.acaudate(biology, zoology) Tailless.acauline(botany) acaulescent acaulous(botany) acaulescent accedingpresent participle and gerund of accede accensed(obsolete) kindled, incited accensor(Roman Catholicism) One of the functionaries who light and trim the tapers.accentedsimple past and past participle of accent accentorAny bird of the Eurasian genus Prunella, such as the dunnock.accentus(music) A style of church music that emphasizes spoken word.acceptedsimple past and past participle of accept accepteeA person who accepts, or is accepted for, a position accepterA person who accepts; a taker.acceptorOne who accepts.accessedsimple past and past participle of access accessesplural of access accessitAn honorable mention in an academic contest.accessorSomeone or something that accesses.accessus(Christianity, historical) In electing a pope, a method by which cardinals could change their most recent vote to accede to another candidate in an attempt to reach the necessary two-thirds majority and end the conclave.accidens(logic) Synonym of accident (“a property, fact, or relation that is the result of chance or is nonessential or nonsubstantive”).accidentAny chance event.accismus(rhetoric) The feigning of disinterest in something while actually desiring it.acclaimsplural of acclaim accoladeAn expression of approval; praise.accolentOne who lives nearby; neighbor.accordedsimple past and past participle of accord accorder(rare) One who accords.accorgan(music) A musical instrument combining an electronic keyboard with an accordion.accosted(heraldry) Supported on both sides by other charges.accosterOne who accosts somebody.accountsplural of account accouple(transitive, obsolete, rare) To join; to couple.accouter(transitive) To furnish with dress or equipments, especially those for military service accoutre(Commonwealth) Alternative form of accouter.accrease(Early Modern, obsolete) An increase.accredit(transitive) To ascribe; attribute; credit with.accresce(Early Modern, obsolete, intransitive) To increase; to grow.accretalRelating to, or formed by, accretion.accretedsimple past and past participle of accrete accreter(astronomy) That which accretes, but especially any massive star etc.accretesthird-person singular simple present indicative of accrete accretor(astronomy) An astronomical body (such as a star) that accretes surrounding material accroach(transitive) To hook, or draw to oneself as with a hook.accrualsplural of accrual accruingpresent participle and gerund of accrue accumbal(anatomy) Relating to the nucleus accumbens.accumber(obsolete, transitive) To encumber; to crush; to overwhelm.accuracyThe state of being accurate; being free from error; exactness; correctness accurateTelling the truth or giving a true result; exact; not defective or faulty.accuriseNon-Oxford British English standard spelling of accurize.accurizeTo improve the accuracy of (a gun).accursed(prenominal) Hateful; detestable, loathsome.accusant(obsolete) An accuser.accusersplural of accuser accusingpresent participle and gerund of accuse accusiveaccusative; accusing accusourObsolete form of accuser.accussin(Chester) disputing, wrangling accustom(transitive, often passive voice or reflexive, with to) To make familiar by use; to cause to accept; to habituate, familiarize, or inure.acediastA person who has acedia.acediousExhibiting acedia, or spiritual sloth.acedoben(organic chemistry) 4-acetamidobenzoic acid, a component of some pharmaceutical preparations including inosine pranobex.acedoxinA particular steroid glycoside.acemisia(rare, neologism) Hatred of asexual people and/or human asexuality; prejudice against people on the asexual spectrum.acentral(botany) offset from center.acentricNot centered; without a centre acephaliplural of acephalus acephalyThe congenital lack of a head (especially in a parasitic twin)acephateAn organophosphate foliar insecticide, O,S-dimethyl acetylphosphoramidothioate, used primarily against aphids acephobeA person who has a negative perception of asexuals and/or human asexuality.aceramic(archaeology, of a culture, period, or site) Having no pottery or other ceramicware items.aceratedSynonym of acerate.acerbate(transitive) To exasperate; to irritate.acerbitySourness of taste, with bitterness and astringency, like that of unripe fruit.acervate(chiefly botany, rare) Heaped, or growing in heaps, or closely compacted clusters.acervuliplural of acervulus acescentTurning sour; readily becoming tart or acid; slightly sour.acetableAn ancient Roman measure, equivalent to about one eighth of a pint.acetalic(organic chemistry) Of or pertaining to an acetal.acetamidObsolete spelling of acetamide.acetated(chemistry) Combined with acetic acid.acetatesplural of acetate acetatic(organic chemistry) Of or pertaining to acetate.acetator(biochemistry, organic chemistry) A device wherein bacteria process a liquid containing alcohol with the help of oxygen into carboxylic acid.acetenyl(organic chemistry) ethynyl acetogen(biology) Any organism that generates acetic acid or acetate as a product of acetogenesis.acetonic(organic chemistry) Of, pertaining to, or producing acetone acetonyl(organic chemistry) The univalent radical CH₃-CO-CH₂- formally derived from acetone acetoxyl(organic chemistry) The acetate group, CH₃COO-, when viewed as a substituent acetract(medicine) In botanical medicine, a vinegar extract of herbs.acetuous(archaic) acetic acetylic(organic chemistry) Of or pertaining to acetyl.acharyasplural of acharya achatina(zoology) Any of the snails of the genus Achatina.achatour(historical) A purveyor of provisions; a provedore. [14th–18th c.]acheilia(pathology) A congenital absence of lips, liplessness acheiriaThe congenital absence of one or both hands achelate(biology) Having no claws achelesswithout an ache achelikeResembling or characteristic of an ache.achenialPertaining to an achene.achenium(botany) achene achesomeCharacterised or marked by aching; painful achetousAlternative form of achaetous.acheweedSynonym of goutweed.achiasmyThe phenomenon where autosomal recombination is completely absent in one sex of a species.achievedsimple past and past participle of achieve achieverOne who achieves something.achievesthird-person singular simple present indicative of achieve achilleaAny of various plants of the genus Achillea achilous(botany, anatomy) Without a lip.achinessThe state of being achy.achinglySo as to cause aching, especially heartache.acholous(medicine) Lacking bile.achroite(mineralogy) A colourless form of tourmaline achromat(optics) A lens that imparts little color; a lens that is achromatic.achromia(medicine) Absence of pigmentation, especially in the skin or blood achromic(sciences) Uncoloured; not pigmented; lacking in colour.achronal(physics) Describing a set of points in a spacetime, no two of which have timelike separation achroousColorless; achromatic.achtbein(mathematics, physics) Synonym of octad.achylous(physiology) Without chyle achymous(physiology) Without chyme.acicularNeedle-shaped; slender like a needle or bristle.aciculum(botany, zoology) A needlelike spine or bristle, specially the seta of an annelid acidcore(music) A subgenre of both acid techno and hardcore which combines the two.acidemiaAlternative form of acidaemia.acidemicAlternative form of acidaemic.acidfreeAlternative spelling of acid-free.acidhead(slang, often derogatory) A person who uses the hallucinogenic drug LSD.acidnessacidity, sourness acidocinAny of a class of bacteriocins produced by Lactobacillus acidophilus.acidogenAny acidogenic organism acidosesplural of acidosis acidosis(pathology) An abnormally increased acidity of the blood.acidotic(pathology) Having depressed alkalinity of blood or tissue.aciduria(medicine) The presence of an acid in the urine aciduric(biology) (of bacteria) growing in acidic medium, but preferring an alkaline medium acidweedAny of the acid-producing, acid-storing algae of the genus Desmarestia.acierage(historical) The process of electroplating a copper engraving with iron or steel.acierate(rare, transitive) To convert (iron) into steel, or to coat with a layer of steel by converting only the surface of the iron.aciliatethat lacks cilia acinaces(historical) A short sword or saber.acinesia(medicine) Alternative form of akinesia.acinesic(archaic) Alternative form of akinesic: akinetic.acineticObsolete spelling of akinetic.acinitis(pathology) inflammation of an acinus acipimoxA niacin derivative used as a hypolipidemic agent.acivicinA glutamine analogue antimetabolite, used as an antineoplastic agent.acknowneObsolete form of acknown.aclasticOf ilk nature, or pertaining to aclasis.aclatterClattering, making or filled with a clattering sound.aclerdid(entomology) Any member of the family Aclerdidae.aclidianThat lacks clavicles aclopineAny scarab beetle of the subfamily Aclopinae acneform(pathology, especially of a rash) Resembling acne acnistinA steroidal lactone found in Acnistus species.acoelous(zoology, of vertebrae) Not hollowed.acolasia(rare) licentiousness acologicPertaining to acology acolytesplural of acolyte aconitalOf, or derived from aconite.aconitesplural of aconite aconitia(organic chemistry) aconitine.aconiticOf or pertaining to aconite.aconitinArchaic form of aconitine.aconitumThe poisonous herb aconite; also, an extract from it.acontialRelating to acontia acontiasplural of acontia acontiumOne of a series of threads of a septum of some actinians acosmismA denial of the existence of the universe as distinct from God.acosmistA follower of acosmism acotinicMisspelling of aconitic.acouasmaAlternative form of acouasm.acousmasplural of acousma acousticPertaining to the sense of hearing, the organs of hearing, or the science of sounds.acquaint(transitive, followed by with) To furnish or give experimental knowledge of; to make (one) know; to make familiar.acquiralThe process of acquiring something; acquisition.acquiredsimple past and past participle of acquire acquireeSomething that is to be acquired, especially a company that is the target of a takeover acquirerOne who acquires.acquiresthird-person singular simple present indicative of acquire acquitalObsolete spelling of acquittal.acranialWithout a skull.acranius(pathology) A foetus in which the cranium is absent or not properly developed acrasial(rare) Lacking self-control; prone to excess; intemperate, uncontrolled.acreable(archaic) Based on an acre; per acre.acreagesplural of acreage acredaleAlternative form of acre-dale.acrelessLacking ownership or possession of land; landless.acrichinThe antimalarial drug quinacrine hydrochloride.acridaneAlternative form of acridan.acridestsuperlative form of acrid: most acrid acridianAny of the family Acrididae of grasshoppers, crickets, locusts etc.acridine(countable, organic chemistry) Any of many derivatives of this compound acridityBitterness or acerbity.acridone(organic chemistry) An tricyclic heterocyclic ketone derived from acridine; any derivative of this compound acrimonyA sharp and bitter hatred.acritudeacridity; pungency combined with heat.acroasisAn oral discourse.acrobatsplural of acrobat acrocarp(botany) Any acrocarpous moss acrocystA chitinous cyst of the gonophore at the top of the gonotheca in some hydroids acrodontHaving teeth immovably united to the top of the alveolar ridge.acrolect(sociolinguistics) The variety of speech that is considered most suitable for formal occasions (typically using only standard forms).acrolein(organic chemistry) A pungent, acrid, poisonous liquid aldehyde, CH₂=CH-CH=O, made by the destructive distillation of glycerol.acrolith(historical) An ancient Greek wooden statue furnished with a rupestral head and limbs.acrologySynonym of acrophony.acromialOf or pertaining to the acromion.acromion(anatomy) The outermost point of the shoulder blade.acronemeThe slender section of a flagellum acronineA particular antineoplastic alkaloid.acronymsplural of acronym acronymyThe formation of words from the initial components of words in a phrase acroporeAny of the genus Acropora of corals acropsin(biochemistry) Any of a group of opsins found in corals of the genus Acropora.acrosine(biochemistry) Synonym of acrosin.acrosomeA structure forming the end of the head of a spermatozoon.acrosticA poem or other text in which certain letters, often the first in each line, spell out a name or message.acrotism(medicine) A lack or defect of the pulse.acrylate(organic chemistry) Any salt or ester of acrylic acid.acrylicsplural of acrylic acryloxy(organic chemistry, in combination) The radical CH₂=CH-CO-O- derived from acrylic acid acryloyl(organic chemistry, especially in combination) The univalent radical CH₂=CH-CO- derived from acrylic acid; 2-propenoyl actedronThe drug amphetamine.acteonid(zoology) Any sea snail in the family Acteonidae.actially(nonstandard) Eye dialect spelling of actually.actibeltA belt that has an accelerometer built into the buckle.actifier(chemistry) Synonym of reactivator.actigramAlternative form of actogram.actinase(biochemistry) A protease that hydrolyses actins actinate(inorganic chemistry) Any oxyanion of actinium, or salt containing such an oxyanion actineon(obsolete) Obsolete form of actinon (“radon-219”), an isotope of radon.actiniaeplural of actinia actinianA sea anemone (of the order Actiniaria).actiniasplural of actinia actinideAny of the 14 elements from actinium to nobelium (lawrencium is excluded by some authors as it is a d-block rather than an f-block element).actiniidAny sea anemone of the family Actiniidae actinism(chemistry, physics) That property of electromagnetic radiation that leads to the production of photochemical effects actiniumA radioactive, metallic chemical element (symbol: Ac) with an atomic number of 89; found in uranium ores.actinoid(inorganic chemistry) actinide actinome(biochemistry) All the actins of an organism actinoptactinopterygian actinost(ichthyology) A bone at the base of a paired fin (of a fish)actinoteAny butterflies of the genus Actinote of the subfamily Heliconiinae, endemic to South America.actinula(zoology) A kind of larva of certain hydroids (Tubularia).actionalOf, pertaining to, or depicting action, especially physical action.actionedsimple past and past participle of action actionee(management) The recipient of an action item; the person assigned responsibility for a specific task or issue.actioner(informal) An action movie.actisignSynonym of sinsign.activantA substance or agent that activates a process.activase(genetics, biochemistry) Any enzyme that activates a gene activate(transitive) To encourage development or induce increased activity; to stimulate.activelyIn an active manner.activismThe practice of using action to achieve a result, such as political demonstration or a strike in support of or in opposition to an issue.activistOne who is politically active in the role of a citizen; especially, one who campaigns for change.activity(uncountable) The state or quality of being active; activeness.activize(transitive) To convert to activism.actogramA graphical representation of the activity of an animal that has been isolated from environmental cues as to the time of day.actoress(nonstandard) Alternative form of actress.actorfic(countable, fandom slang) A fanfic focusing on the imagined activities of a real actor or actors.actorialRelating to an actor, or one who performs an action.actorine(archaic, rare) An actress.actorishOf, pertaining to, or characteristic of an actor or theatrical acting; like an actor.actorism(rare) The manner or habits of an actor.actorney(Scotland) Obsolete spelling of attorney.actressyCharacteristic of an actress actually(modal) In act or in fact; really; in truth; positively.actuatedsimple past and past participle of actuate actuatesthird-person singular simple present indicative of actuate actuatorSomething that actuates something else.acuariid(zoology) Any nematode in the family Acuariidae.acuation(rare) The act of sharpening.acuitiesplural of acuity acuition(obsolete) Synonym of acuation (“act of sharpening”).aculeateHaving a sting; sharp like a prickle.aculeous(Late Modern, obsolete) Resembling or pertaining to a needle.acupoint(alternative medicine) A specific point on the body where acupuncture or acupressure is applied.acupress(transitive) To apply acupressure to.acutance(uncountable) Edge contrast or sharpness in an image; also, a measure of this.acutobin(biochemistry) Any of a group of serine glycoprotein proteases.acylated(organic chemistry) Having an acyl functional group; modified by addition of an acyl group acylomicRelating to an acylome or to acylomics acyloxyl(organic chemistry) Any univalent radical containing an acyl functional group bonded to an oxygen atom having a free valence on the oxygen atom; RC(=O)O-adactyly(biology, medicine) Congenital absence of the digits (the fingers or toes).adakitic(mineralogy) Relating to or composed of adakite.adamanceThe quality of being adamant adamancyThe property of being adamant.adamauntObsolete form of adamant.adamitesplural of adamite adamsiteAn organic compound, diphenylaminechlorarsine, used as a riot-control agent.adapicaltowards an apex adaptate(nonstandard and non-native speakers' English) To adapt.adaptersplural of adapter adaptingpresent participle and gerund of adapt adaptionAlternative form of adaptation.adaptiveOf, pertaining to, characterized by or showing adaptation; making or made fit or suitable.adaptorsplural of adaptor adatomicOf or pertaining to adatoms.adaxonal(anatomy) Close to an axon addaties(obsolete) A kind of cotton cloth from India.addebted(obsolete) indebted addendedsimple past and past participle of addend addendumSomething to be added; especially text added as an appendix or supplement to a document.addental(phonology) Near the teeth.addictedHaving a biochemical addiction.addiment(immunology, archaic) Synonym of complement.addition(uncountable) The act of adding anything.additive(mathematics) Pertaining to addition; that can be, or has been, added.additory(rare) Tending to add; making some addition.addlings(UK, Yorkshire, dialect, archaic) Earnings.addorsed(heraldry, of animals or wings) Set back to back, facing away from each other.adducent(physiology) Related to the muscles of the body which pull one part towards another.adducingpresent participle and gerund of adduce adductedsimple past and past participle of adduct adductor(anatomy) A muscle which draws a limb or part of the body toward the middle line of the body, or closes extended parts of the body—opposed to abductor.adefovir(pharmacology) A drug used to treat hepatitis B and herpes simplex virus infection.adelopod(obsolete, rare) An animal having feet that are not apparent.adelphiaAny plant of the genus Adelphia, of Latin America.adelphicDescribing a form of polyandry in which a woman is married to two or more brothers adeninesplural of adenine (multiple adenine molecules)adenitis(medicine, pathology) Glandular inflammation.adenoidsplural of adenoid adenoidyadenoidal (of a voice)adenomasplural of adenoma adenosis(medicine) Benign swelling, scarring or enlargement of the lymph glands; a minor, low-risk glandular condition.adenosyl(biochemistry, especially in combination) The univalent radical derived from adenosine adenylicOf or pertaining to adenylic acid or its derivatives adenylyl(organic chemistry) A functional group derived from adenosine monophosphate, also known as 5-adenylic acid adeption(obsolete) An obtaining; attainment.adeptist(obsolete) A skilled alchemist.adequacyThe quality of being sufficient, adequate or able to meet the needs.adequateEqual to or fulfilling some requirement.adespota(bibliography) Literary works not attributed to (or claimed by) an author. (Originally used as a title of collections of anonymous Greek poetry.)adessive(grammar) Of or relating to the grammatical case that in some languages indicates adjacent location.adfected(algebra, archaic, of an equation) Having different powers of the unknown quantity in its various terms.adfreeze(intransitive) To freeze together; to adhere through the formation of ice.adhamant(biology, rare) Clinging, as if by hooks.adharmic(Hinduism, Buddhism) unrighteous; contrary to universal law.adherendThat which adheres to something else by adhesion.adherentAdhesive, sticking to something.adheringpresent participle and gerund of adhere adhesineMisspelling of adhesin.adhesionThe ability of a substance to stick to an unlike substance.adhesiveSticky; tenacious, as glutinous substances.adhesome(biology) All the adhesion receptors of an organism adhoceryAlternative spelling of ad hocery.adhocismAlternative spelling of ad hocism.adhocrat(business, organizational theory) One who espouses or practises adhocracy.adiantumThe maidenhair fern and related ferns (of the genus Adiantum)adimololAn antihypertensive drug.adimuraiA martial art from Tamil Nadu, India.adipolin(biochemistry) A particular adipokine, encoded in humans by the FAM132A gene.adiposis(medicine) A condition marked by the accumulation of adipose (fatty) tissue.adipsous(medicine) thirst-quenching aditerenA diuretic drug.adjacentLying next to, close, or contiguous; neighboring; bordering on.adjoinedsimple past and past participle of adjoin adjointsplural of adjoint adjournsthird-person singular simple present indicative of adjourn adjudgedsimple past and past participle of adjudge adjudgerOne who adjudges.adjudgesthird-person singular simple present indicative of adjudge adjugate(mathematics) The transpose of the respective cofactor matrix, for a given matrix. One of the factors in calculating the inverse of a matrix. Commonly notated as adj(A), where A is the given matrix.adjument(obsolete) Help; support; that which or one who helps or supports.adjunctsplural of adjunct adjuringpresent participle and gerund of adjure adjustedWhich has been compensated in order to avoid bias.adjusterOne who adjusts something, especially the amount of compensation due in an insurance claim.adjustorAlternative form of adjuster.adjutageAlternative form of ajutage.adjutant(military) A lower-ranking officer who assists a higher-ranking officer with administrative affairs.adjutory(archaic) Serving to help or assist; helpful adjutrixA female adjutor.adjuvant(formal) Providing assistance or help; assistive, facilitative, helpful.adjuvateTo help; to further.adlibbedsimple past and past participle of adlib adlumine(organic chemistry) An alkaloid found in plants of genus Adlumia.admedial(anatomy) Near the medial plane admedian(anatomy) Near the median plane admesial(biology) Near, or moving towards the midline adminish(transitive, obsolete) To reduce in size or magnitude; to diminish.admiralsplural of admiral admirate(non-native speakers' English) To admire.admirersplural of admirer admiringFeeling or showing admiration.admirize(rare, archaic) To admire, wonder.admittedsimple past and past participle of admit admitteeOne who is admitted.admitterSomeone who or something which admits.admixingpresent participle and gerund of admix admonish(transitive) To inform or notify of a fault; to rebuke in a serious tone; to tell off.admotion(obsolete) The process of admoving; motion toward something.adnation(botany) The fusion of different floral verticils or sets of organs.adneural(anatomy) Near a nerve adolapin(biochemistry) An analgetic, antiinflammatory polypeptide present in bee venom adolesce(intransitive) to become adolescent; to pass through adolescence.adonidin(organic chemistry) A glucoside found in the plant Adonis vernalis (false hellebore, pheasant's eye).adonisesthird-person singular simple present indicative of adonise adopteesplural of adoptee adoptersplural of adopter adoptian(Christianity) A proponent of adoptianism.adoptingpresent participle and gerund of adopt adoptionThe act of adopting.adoptiveRelated through adoption.adorableBefitting of being adored; cute or loveable.adorablyIn an adorable manner.adorallyIn an adoral way; near to the mouth.adorcismThe voluntary, desired or curative possession by a spirit.adornersplural of adorner adorningpresent participle and gerund of adorn adpersonAn adman or adwoman.adradial(anatomy) Relating to the inner radius adragant(obsolete) Gum tragacanth.adraxone(biochemistry, rare) Adrenochrome.adreamed(obsolete) Dreaming.adrectal(anatomy) Near or beside the rectum.adrenalsplural of adrenal adrenate(organic chemistry) Any salt or ester of adrenic acid adrogate(transitive, Ancient Rome, law, historical) To adopt (a free citizen).adroitlyDeftly; in an adroit manner.adscriptA feudal serf or labourer who is attached to an estate and sold or transferred with it.adsorbedsimple past and past participle of adsorb adsorberSomething which adsorbs, especially a solid material, such as activated carbon, that has a high surface area and is used to capture a gas or liquid adstrate(linguistics) adstratum adstrictAlternative form of astrict.adularia(mineralogy) A variety of orthoclase feldspar found as colorless to white prismatic crystals in cavities in metamorphic rocks. Some specimens reflect a bluish sheen along crystal faces. This phenomenon is called adularescence, and adularia with this property is called moonstone. (See sanidine).adulatedsimple past and past participle of adulate adulatesthird-person singular simple present indicative of adulate adulatorOne who lavishes excessive praises or flattery; one who adulates.adultery(strictly) Sexual intercourse by a married person with someone other than their spouse. See more synonyms at Thesaurus:cuckoldry adultifyTo treat a non-adult like an adult.adulting(nonstandard) Adultery.adultishOf or suitable for an adult.adultismA predisposition towards adults (or a bias against children or other younger people).adultistBiased in favor of adults (and against children); exhibiting adultism.adultize(transitive, sociology, psychology) To raise (a child) in such a way that it adopts adult behaviors earlier than is usual.adultnap(rare, humorous, transitive) to kidnap, to abduct (an adult)adultoid(zoology) A premature adult form of an insect.aduncate(rare) curved inwards; hooked aduncityCrookedness, curvaceousness, hookedness.aduncouscurved inwards; hooked adustionThe act of burning, or heating to dryness; the state of being thus heated or dried.advalvarTowards the valve (of a mollusc)advancedsimple past and past participle of advance advancerOne who advances or puts forward.advancesplural of advance advaunceObsolete form of advance.advectedsimple past and past participle of advect advehent(anatomy) Carrying towards an organ or structure.advertedsimple past and past participle of advert advillin(biochemistry) A gelsolin that regulates the morphogenesis of neurons advisersplural of adviser advisingpresent participle and gerund of advise advisiveAdvisory in tone and content.advisorsplural of advisor advisoryAble to give advice.advocaatA Dutch liqueur made of egg yolks, sugar and strong liquor, typically brandy.advocacyThe profession of an advocate.advocateSomeone whose job is to speak for someone's case in a court of law; a counsel.advolute(malacology) Having or being a (mollusc) spiral shell in which the whorls touch along a line (but do not overlap).advoutry(obsolete) adultery advowrer(obsolete, Early Modern) A protector, especially a patron saint.advowson(UK, ecclesiastical law) The right to present a nominee to a vacant ecclesiastical benefice or church office.advowtry(obsolete, archaic) adultery adynamia(pathology) Lack or loss of strength, usually due to a disease.adynamicNot dynamic; without strength or vigor.adynaton(rhetoric) A form of hyperbole that uses exaggeration so magnified as to express impossibility; an instance of such hyperbole.adynerinA particular steroid glycoside.adzebillEither of two bird species of the extinct family †Aptornithidae, once endemic to New Zealand.adzelikeResembling or characteristic of an adze.adzeworkcutting work done with an adze aecidialOf or relating to the aecidium.aecidium(mycology) A member of the form genus Aecidium.aedeagalRelating to the aedeagus.aedeagusA copulatory organ of some male insects.aedicula(art) A painted framed niche giving the appearance of depth.aediculeA small house or room.aedility(historical, Ancient Rome) The office of an elected official responsible for festivals and the maintenance of public buildings.aegagrusThe wild goat Capra aegagrus.aegeriid(zoology) Any of the clearwing moths in the family Aegeriidae.aegilopsAn ulcer or fistula in the inner angle of the eye.aegirine(mineralogy) A mineral with monoclinic crystals with the chemical formula NaFe³⁺(Si₂O₆) belonging to the pyroxene group.aegirite(mineralogy, rare) aegirine aeglogueObsolete form of eclogue.aegrotat(British) An unclassified degree awarded to such a student.aegypiinAny vulture of the subfamily Aegypiinae aegypineRelating to or characteristic of vultures aegyptin(biochemistry) Any of a group of proteins present in the salivary gland of the mosquito (Aedes aegypti)aegyrine(mineralogy) Alternative form of aegirine.aeoliansplural of aeolian aequalis(grammar) The case conveying an equality with another noun, equivalent to “like” or “as” in English. This case is used in some languages like Inuktitut.aequatorObsolete spelling of equator.aequorin(biochemistry) A photoprotein, isolated from luminescent jellyfish and other marine organisms, composed of two distinct units: the apoprotein apoaequorin and the prosthetic group coelenterazine.aerarianAn aerarius; the lowest class of citizen in Ancient Rome.aerarium(historical) The state treasury of Ancient Rome.aeratingpresent participle and gerund of aerate aerationThe process by which air is circulated through or mixed with a substance such as soil or a liquid.aeratorsplural of aerator aeraulicRelating to the transmission of energy via pressurised air aeriallyIn an aerial manner.aerifiedsimple past and past participle of aerify aeriformPertaining to air.aerinite(mineralogy) A blue mineral with monoclinic crystals, Ca₄(Al,Fe³⁺,Mg, Fe²⁺)₁₀Si₁₂O₃₅(OH)₁₂CO₃·12H₂O, made of clay and sometimes used as pigment.aeroballA sport, somewhat like volleyball, in which the players compete while on a trampoline aerobate(aviation) To perform aerobatics.aerobian(archaic) aerobic aerobicsA form of exercise, designed to enhance one's cardiovascular fitness, normally performed to music.aerobies(biology) aerobic microorganisms aerobism(biology) aerobic respiration aerobium(obsolete, rare) Synonym of aerobe.aeroboat(archaic) A form of hydroaeroplane; a flying boat.aerobomb(dated) A bomb dropped from an aircraft.aerocele(anatomy) An air-filled cavity aeroclubA flying club; an organization for aircraft pilots.aerocystAn air vesicle.aerodone(dated) Synonym of glider (“type of aircraft”).aeroductA proposed form of ramjet that harnesses charged particles in the upper atmosphere aerodyne(aviation) A heavier-than-air aircraft, deriving its lift from motion.aerofoilBritish standard form of airfoil.aerogami(papercraft) Airborne origami.aerogelsplural of aerogel aerogramA thin piece of foldable and gummed paper for writing a letter and serving as its own envelope for transit via airmail.aeroliteA meteorite consisting of silicate minerals.aerolith(chiefly historical) A meteorite.aerolizeAlternative form of aerosolise.aerologyThe branch of meteorology involving the observation of the atmosphere by means of balloons, kites, rockets, drones, airplanes, etc.aeromail(obsolete) air mail aerometeAlternative form of aerometer.aeronautA person who travels through the air in an airship or balloon.aeronomyA branch of science that deals with the upper atmosphere of the Earth and the other planets with reference to their chemical composition, physical properties, relative motion, and responses to radiation from space.aeroparkA visitor attraction where aeroplanes are on display.aeroport(dated) An airport.aeropyleA system of air passages in the chorion of some insects that enables oxygen exchange with the environment aerosledA type of propeller-driven snowmobile running on skis.aerosolsplural of aerosol aerostatAn aircraft, such as a dirigible or balloon, that derives its lift from buoyancy rather than from wings or rotors.aerotope(biology) A gas-filled vesicle in the cells of some cyanobacteria aerovaneAn anemometer that combines a propeller and a tail on the same axis to measure wind speed and direction.aerugite(mineralogy) A rare complex nickel arsenate mineral that forms green to deep blue-green trigonal crystals.aesculinAlternative form of esculin.aesthete(often derogatory) Someone who cultivates an unusually high sensitivity to beauty, as in art or nature, often in a manner perceived to prioritize beauty over other qualities such as virtue and utility.aestivalAlternative spelling of estival.aestuateObsolete spelling of estuate.aestuousFull of passion; agitated.aethalicAlternative form of ethalic.aethericAlternative spelling of etheric.aethiops(obsolete, mineralogy) Any of various dark oxides or sulfides of metals aethrianAny noctuoid moth in the genus Aethria.aetosaur(paleontology) Any of an extinct group of heavily armoured herbivorous archosaurian reptiles, of the order †Aetosauria.afatinib(pharmacology) A drug against non-small cell lung carcinoma.afebrileHaving no fever, without a fever.affairesplural of affaire affamish(obsolete) To cause (somebody) to die of hunger; to starve.affearedsimple past and past participle of affear affectedInfluenced or changed by something.affecteeOne who, or that which, is affected.affecterA person who affects to know something or to be something.affectorA nerve cell that directly activates a muscle affeeble(obsolete) To enfeeble.affeerer(law, obsolete) One who affeers.afferentCarrying towards.affiance(transitive) To be betrothed to; to promise to marry.affibody(biochemistry) Any of a series of commercial antibody-mimetic proteins affichesplural of affiche affidavy(colloquial, dialect) An affidavit.affinageThe aging of cheese as part of its manufacture.affinelyIn an affine manner affineurOne who ages cheese and purveys it.affinityA natural attraction or feeling of kinship to a person or thing.affinize(mathematics) convert to affine form affinoid(mathematics) affine in most respects affirmedsimple past and past participle of affirm affirmerOne who affirms.affixialBeing or relating to an affix.affixingOf the function or role of an affix affixionThe act of affixing; affixation, affixment, attachment.affixive(linguistics) Forming words through the addition of an affix affixoid(linguistics) A regular word that also works as an affix afflatedsimple past and past participle of afflate afflatusA sudden rush of creative impulse or inspiration, often attributed to divine influence.afflictsthird-person singular simple present indicative of afflict affluentSomeone who is wealthy.affluxesplural of afflux affodill(obsolete) daffodil affogatoA drink or dessert (especially ice cream) topped with espresso and sometimes a caramel or chocolate sauce.affordedsimple past and past participle of afford afforderOne who, or that which, affords or makes available.afforest(transitive) To make into forest affrayerOne involved in an affray.affrescoAlternative form of fresco (“type of artwork”).affrightafraid; terrified; frightened affronteObsolete form of affront.affrontsplural of affront affrontyAlternative form of affronté.affusingpresent participle and gerund of affuse affusionThe pouring of liquid, especially as a hydrotherapy.afghanisplural of afghani afikomanAlternative spelling of afikomen.afikomen(Judaism) The matzoh eaten at a Passover seder, after dinner.afoliate(botany) Having no leaves; leafless.aforesetSet or determined in advance.afoveateLacking the retinal fovea.afraidlyIn an afraid manner.afreight(literary, chiefly figurative) Filled or charged (with something).africansplural of african afrobeat(music) Music that combines West African musical styles (such as traditional Yoruba music and highlife) with American funk, jazz, and soul influences, with a focus on chanted vocals, complex intersecting rhythms, and percussion.afroditeAlternative form of aphrodite; stevensite.afronautAlternative letter-case form of Afronaut.afrosideA particular steroid glycoside.aftanoonPronunciation spelling of afternoon.afterageAn age occurring afterwards; a later era.afterallMisspelling of after all.afterbay(hydrology) a stream, conduit, pond or reservoir, of a hydroelectric power plant at the outlet of the turbines.aftereggA meroblastic egg, ovum, or ovule which has acquired its store of foodyolk, or been otherwise modified from its original primitive condition as an egg-cell or protovum aftersawsimple past of aftersee aftersetThat which is positioned after or behind.aftersunDescribing a cooling or moisturizing lotion applied to the skin after exposure to the sun, especially to soothe sunburn.aftertaxAlternative spelling of after-tax.afterwarFollowing a war.afterwitWisdom which comes after the event.aftwardsAlternative form of aftward.afurololA beta blocker.agabanee(historical) A cotton fabric embroidered with silk, made in Aleppo.agacerieCoquetry; flirtatiousness.againsaw(obsolete) Contradiction; gainsaying againsay(transitive, obsolete, rare) To contradict; to gainsay.agalaxiaAlternative form of agalactia.agalinis(botany) Any of the genus Agalinis of flowering plants.agallochThe soft, aromatic, resinous wood of Aquilaria malaccensis (formerly Aquilaria agallocha).agalwoodAlternative form of agarwood.agametesplural of agamete agameticRelating to agametes aganaineAny moth of the subfamily Aganainae agapeismAlternative form of agapism.agapeistA proponent of agapeism.agapetaeplural of agapet agaphiteA blue conchoidal variety of turquoise.agardite(mineralogy) Any of a group of copper arsenate minerals that contain varying proportions of several rare earth elements such as cerium, neodymium, lanthanum and yttrium.agaricic(organic chemistry) Relating to agaricic acid or its derivatives agaricin(organic chemistry) An organic tricarboxylic acid (fatty acid) found in fungi.agarisedAlternative form of agarized.agarizedTreated with agar.agarwoodHeartwood from trees of genus Aquilaria, especially Aquilaria malaccensis (syn. A. agallocha), infected with mold (Phialophora parasitica), which produce a protective aromatic resin in response to this infection.agastric(biology) Having no alimentary canal; lacking a stomach, intestines, or digestive tract.agathismThe doctrine that the ultimate end of all things is good, although the intermediate means may be evil.agathistA person who believes in agathism.agatizedsimple past and past participle of agatize agatoxinAmy of a family of polypeptide toxins present in the venom of Agelenopsis aperta and similar spiders agednessThe state or quality of being aged.ageisticexhibiting ageism ageistlyageistically agelenid(zoology) Any spider in the family Agelenidae.agenbite(often purposely archaic) Remorse, ayenbite.agenciesplural of agency agendumsplural of agendum agenesesplural of agenesis agenesic(biology) sterile, infertile agenesis(pathology) Any imperfect development of the body, or any anomaly of organization ageneticNot genetic; that does not have a genetic cause agenitalLacking genitals agenizedTreated with agene.agenteseThe jargon used by agents or an agency.agentess(rare) A female agent.agentialOf or pertaining to an agent or an agency.agentingWorking as an agent (one who acts for another).agentive(grammar) Indicating an agent or agency (as -er in lexicographer).ageotypeThe type of an organism characteristic of a certain age agerasiaAn outward appearance more youthful than one's true age.ageratumAny of the genus Ageratum of tropical American herbs, annuals and perennials, from the sunflower family Asteraceae, tribe Eupatorieae; they are sometimes used in floral displays.ageusiacA person who has no sense of taste, or who has lost the sense of taste.ageustiaAlternative spelling of ageusia.aggerate(transitive) To heap up.aggeroseIn heaps; full of heaps.agglutin(immunology, medicine, rare) Any antibody that causes agglutination of cells.aggradedsimple past and past participle of aggrade aggradesthird-person singular simple present indicative of aggrade aggrecan(biochemistry) A proteoglycan, containing chondroitin sulfate, that is a major component of cartilage aggrieve(transitive) To cause someone to feel pain or sorrow to; to afflict agidigbo(music) A lamellophone worn around the neck, originating among the Yoruba of Nigeria, played by striking the box frame of the instrument with a ring worn around a thumb.aginator(obsolete) A shop owner.agiotage(dated, trading) Stock exchange business; especially, stockjobbing, manipulation of securities prices.agitableEasily agitated or moved agitatedAngry, annoyed, bothered or worked up.agitatesthird-person singular simple present indicative of agitate agitatorOne who agitates; one who stirs up or excites others, for example political reformers.agitoxinA peptide toxin in the venom of some scorpions agitprop(countable) An instance of such propaganda.aglimmerGlimmering; gleaming or shining.aglossalHaving no tongue.aglossia(anatomy) The absence of a tongue.agluconeThe aglycone of a glucoside aglycone(organic chemistry) The non-sugar fragment of a glycoside.aglyconsplural of aglycon; alternative spelling of aglycone.agmatine(biochemistry) The amine (4-aminobutyl)guanidine which is a decarboxylation product of arginine and an intermediate in polyamine biosynthesis agmatite(geology) A form of migmatite containing xenoliths, typically of breccia agminate(archaic, biology) Grouped together.agnathan(zoology) Belonging or pertaining to the superclass Agnatha, the jawless vertebrates.agnathia(pathology) A birth defect in which the mandible is missing.agnationconsanguinity by a line of males only, as distinguished from cognation agnition(obsolete) Acknowledgement.agnogene(genetics) A gene that expresses an agnoprotein.agnorantSimultaneously ignorant and arrogant.agnosticDoubtful or uncertain about the existence or demonstrability of God or other deity.agnostidA trilobite of the order Agnostida.agnuside(organic chemistry) An organic compound found in Vitex agnus-castus; the ester of aucubin and p-hydroxybenzoic acid.agoggled(rare) staring; having staring eyes.agonadalLacking gonads agonadia(medicine) absence of the gonads agonious(rare) Agonizing.agonisedExperiencing agony agonisesthird-person singular simple present indicative of agonise agonistsplural of agonist agonizedsimple past and past participle of agonize agonizerOne who agonizes.agonizesthird-person singular simple present indicative of agonize agoutiesplural of agouty agpaiticOf or pertaining to agpaite.agraphia(pathology) A loss of the ability to write (usually resulting from a brain injury).agraphic(medicine) Affected with or pertaining to agraphia.agraphonAny of the sayings of Jesus found in various ancient texts but not in the four Gospels.agrarianOf, or relating to, the ownership, tenure and cultivation of land.agreableObsolete spelling of agreeable.agreeingpresent participle and gerund of agree agrementObsolete form of agreement.agrestal(botany) That grows wild in cultivated fields agresticOf or pertaining to the fields; rural; rustic, unpolished agretope(immunology) The part of a biomolecule that binds to the major histocompatibility complex molecule agricharBiochar produced by a slow pyrolysis process.agrifoodAlternative form of agri-food.agrihoodA type of planned community that integrates agriculture into a residential neighborhood. The purpose is to facilitate food production and to provide green space, recreation, aesthetics and value for a community.agriloidAny beetle of the genus Agriloides agrimonyAny of several perennial herbaceous plants, of the genus Agrimonia, that have spikes of yellow flowers.agritechAlternative form of agrotech.agrocityA city designed around the practice of agriculture.agrofoodAlternative form of agri-food.agrofuelAny biofuel produced by agricultural means.agrology(chiefly Canada) The science and art of agriculture.agronomeAn agronomist.agronomyThe science of utilizing plants, animals and soils for food, fuel, feed, and fiber and more. To do this effectively and sustainably, agronomy encompasses work in the areas of plant genetics, plant physiology, meteorology, animal sciences and soil science.agroparkA business area with a concentration of agriculture-related services such as storage and logistics; an agribusiness complex.agrophic(botany, of a vein) Not paired with a vein on the opposite side of the lateral vein.agropine(organic chemistry) An unusual amino acid (opine) found in some crown gall tumours agrostisAny grass of the genus Agrostis of bentgrasses.agrotech(informal) Clipping of agrotechnology.agrotownSynonym of agrocity.agrotypeA type of soil used for agriculture agrypnia(psychiatry, pathology) Persistent loss of sleep; insomnia; sleeplessness.aguacate(archaic) avocado aguamielThe sap of the Mexican maguey plant.aguelikeResembling or characteristic of an ague.agueweedThe common boneset (Eupatorium perfoliatum).aguishly(now rare) In an aguish manner; as though suffering from ague.agyatwas(Hinduism) A period of concealment or exile of the Pandavas.ahamkara(Hinduism) Attachment to one's ego.ahankaraAlternative form of ahamkara.ahemeral(biology) Cyclical, with a period not equal to 24 hours aheylite(mineralogy) A pale blue or green triclinic mineral.aigretteA feather or plume, or feather-shaped item, used as an adornment or ornament, typically in hats or hair.aiguilleA needle-shaped peak.aikidokaOne who practices aikido, the martial art.aikinite(mineralogy) A sulfide mineral of lead, copper and bismuth.ailantus(archaic) Any member of the tree genus Ailanthus.aileronsplural of aileron ailmentsplural of ailment ailurineAny member of the subfamily Ailurinae.aimfullyIn an aimful manner; with fixed purpose.aimpointThe point at which a firearm is aimed, typically identified by a red dot sight.aiphanol(organic chemistry) A stilbenolignan found in the seeds of Aiphanes aculeata.airballsplural of airball airbasesplural of airbase airblastA sudden rush of air; often, such a blast in a confined space (such as a mine) right after a disturbance or explosion.airblownAlternative spelling of air-blown.airboardAn inflatable bodyboard for use on snow.airborneIn or carried by the air.airboundOf a pump etc.: containing too much air, such that the flow is impeded.airbrakeA brake (slowing device) that is operated pneumatically (by air pressure).airbrickAlternative spelling of air brick.airbrushTo paint using an airbrush.airburstThe explosion of a bomb (or similar weapon) or meteoroid in the air rather than on the ground.airbusesplural of airbus aircheck(broadcasting) A demonstration recording, often intended to show off the talent of an announcer to a prospective employer.aircoach(aviation) An airliner offering relatively cheap but cramped passenger flights.aircoverAlternative form of air cover.aircraftA vehicle capable of atmospheric flight due to interaction with the air, such as buoyancy or lift.aircraneA heavy-lift helicopter aircrash(nonstandard) An airplane crash.aircrewsplural of aircrew airdatesplural of airdate airdrawnvisionary; imaginary; lacking foundation in reality airdriedsimple past and past participle of airdry airdriesthird-person singular simple present indicative of airdry airdromeA location where aircraft are operated, usually having a runway and maintenance facilities.airedaleAlternative form of Airedale (all senses)airfarerOne who travels by air.airfaresplural of airfare airfield(aviation) An open field designated for the taking off and landing of aircraft, but which, unlike an airport, does not necessarily have terminals or paved runways.airflareIn breakdancing, an acrobatic maneuver in which the performer, standing on his or her hands, rotates the torso around the vertical axis of the body (extending from the head down vertically) while travelling in a circular path along a plane parallel to the floor.airfleetA fleet of (civilian or military) aircraft.airflowsplural of airflow airfoilsplural of airfoil airforceAlternative spelling of air force.airframeThe main body and structure of an aircraft (without the powerplant).airfryerAlternative spelling of air fryer.airgraph(UK, historical) A form of airmail used to send messages to servicemen during the Second World War.airgroup(military) A unit or formation consisting of a number of air force squadrons.airheadsplural of airhead airholesplural of airhole airhouseAn inflatable mobile shelter.airinessThe quality of being airy.airlanesplural of airlane airliftsplural of airlift airlinerA passenger-carrying aircraft, especially one of a fleet operated by an airline.airlinesplural of airline airlocksplural of airlock airmails(colloquial) The items of mail conveyed using aircraft.airnings(dialect) earnings airparksplural of airpark airphoneAn air-to-ground telephone service for passengers on airline flights.airphotoA photograph taken from the air, for example to study terrain.airplaneAny of various small flyable objects that are notionally comparable to such aircraft but aren't powered.airplantAlternative form of air plant.airponicPertaining to airponics. Synonym of aeroponic.airportsplural of airport airpowerAirborne military power; an air force.airscapeThe view of the sky, or an artistic work that visually represents it.airscoopA cowl shaped and positioned to draw air into the engine of a moving vehicle or aircraft airscrewThe propeller of an aircraft; the prop.airshaft(mining) A passage supplying ventilation into a mine tunnel or other underground facility.airshift(radio broadcasting) A block of continuous broadcast time, often four or six hours.airshipsplural of airship airshoot(architecture) A channel for providing ventilation.airspace(aviation) that part of the sky designated for the sole use of aircraft.airspeed(aviation) The speed of an aircraft relative to the air through which it is flying.airsportAlternative form of air sport.airsprayA spray (of liquid) powered by compressed air airstaff(US, broadcasting) The staff of a radio station whose voices are broadcast.airstairA set of stairs permitting entry to and exit from an aeroplane, typically built into a folding door.airstoneA piece of aquarium furniture, traditionally limewood or porous stone, whose purpose is to diffuse oxygen gradually into the tank, eliminating the noise and large bubbles of conventional air filtration systems.airstripAn aircraft landing field, usually with one runway and only basic facilities.airtightImpermeable to air or other gases.airwardsToward the air; upward.airwavesRadio-frequency electromagnetic waves, usually used in the context of wireless communication; radio waves.airwomanA woman who flies in an aircraft; a female aviator.airwound(of an electromagnetic coil) Wound around air, i.e. lacking a solid core.airyatedAlternative form of aeriated.aislewayAisle (clear path between seats, shelves, etc).aistopod(paleontology) A snake-like amphibian from the order Aistopoda.ajmalineAn antiarrhythmic drug originally isolated from the roots of Rauvolfia serpentina.akalimbaAn African thumb piano.akamatsuThe Japanese red pine, Pinus densiflora.akathist(Christianity) A hymn dedicated to a saint, holy event, or person of the Holy Trinity, in Eastern Christian traditions.akazgine(organic chemistry) A poisonous alkaloid, analogous to strychnine, obtained from the akazga plant.akinesia(medicine) The loss of the ability to control motor muscles.akinesicOf or pertaining to akinesia.akinesisAbsence of a kinetic hinge in the skull.akineticWithout motion.akinnessThe quality of being akin; similarity.aklavineSynonym of aclacinomycin.aklomideAn antiprotozoal drug.akontingA folk lute of the Jola people of West Africa; a banjo-like instrument with a skin-headed gourd body, two long melody strings, and one short drone string.akshullyEye dialect spelling of actually.akudjuraPowdered kutjera, used as a seasoning.alabarchThe title of the governor or chief magistrate of the Jews in Alexandria under the Ptolemies and Roman emperors.alachlorA particular chloroacetanilide herbicide.alacrify(transitive) To rouse into action; to inspirit; to inspire.alacrima(pathology) A congenital inability to produce enough tears (absence or inadequacy of tear production).alacrityEagerness; liveliness; enthusiasm.alakazamA magic word used in conjuring; presto, shazaam.alalongaLongfin tuna, albacore (Thunnus alalunga).alalungaAlternative form of alalonga.alamandeAlternative form of allemande.alamedasplural of alameda alamontiThe storm petrel.alaninol(organic chemistry) The amino alcohol 2-amino-1-propanol, related to alanine.alarmingpresent participle and gerund of alarm alarmismThe raising of needless alarms.alarmistOne who causes others to become alarmed without cause.alarmone(biochemistry) An intracellular signal molecule produced due to harsh environmental factors, and serving to regulate the gene expression at transcription level.alarsite(mineralogy) A trigonal mineral with the chemical formula Al[AsO₄].alaskite(geology) A form of granite composed chiefly of quartz and feldspars.alastrim(medicine) A milder variant of smallpox alaudineOf or pertaining to skylarks.albacoraObsolete form of albacore (“longfin tuna”).albacoreA longfin tuna, a large marine fish (Thunnus alalunga) of warm seas, having edible flesh.albanite(mineralogy) A melanocratic leucitite.albarium(art) A form of lime, made by heating marble, used for stucco.albarizaA white porous chalky soil found in some regions of Andalusia, Spain and on which sherry vineyards are often planted.albatrosObsolete form of albatross.albecoreArchaic spelling of albacore.albicant(obsolete, rare) Growing or becoming white.albicoreAlternative form of albacore.albiness(archaic) A female albino.albinismCongenital lack of melanin pigmentation in the skin, eyes, and hair or feathers (or more rarely only in the eyes); the condition of being albino.albinoidHaving or relating to albinism.albitiseAlternative form of albitize.albitite(geology) Any rock composed mostly of albite albitize(mineralogy) To convert into albite albizziaAny of a number of trees and shrubs considered either now or formerly to belong to the genus Albizia.albocoreArchaic spelling of albacore.alboliteAlternative form of albolith.albolith(obsolete) A kind of cement consisting mostly of magnesia and silica.albondin(pharmacology, biochemistry) A cell receptor that binds albumin.alboradaA Spanish aubade or morning song.albuloidRelating to or characteristic of the albulids.albuminsplural of albumin albumoidAlternative form of albuminoid.albumoneSynonym of albuminone.albumoseAny of a class of polypeptides formed by digestion of protein; proteose albuneid(zoology) Any member of the family Albuneidae.alburnumsapwood; the soft, newer wood in the trunk of a tree found between the bark and the hardened heartwood.albutoin(pharmacology) An anticonvulsant drug.alcahestrare spelling of alkahest alcaidesplural of alcaide alcalase(biochemistry) A protease obtained from Bacillus licheniformis alcatiffAlternative form of alcatif.alcatote(British, dialectal, obsolete) A foolish oaf.alcatras(obsolete) Any of various large ocean birds, such as the pelican, gannet, frigatebird, or albatross.alcavalaIn Spain, a tax levied on transactions involving property movable or immovable.alcaydesplural of alcayde alcazarsplural of alcazar alcedineOf or relating to a kingfisher or kingfishers.alchohol(hypercorrect) Misspelling of alcohol.alchymieObsolete form of alchemy.alcidineResembling or characteristic of an auk.alcoholsplural of alcohol alcoholy(rare) Resembling or characteristic of alcohol.alcyonic(zoology) Of, relating to, or belonging to, the Alcyonaria.alcyonidAny bryozoan of the genus Alcyonidium aldarate(organic chemistry) Any salt of an aldaric acid aldazine(organic chemistry) An azine derived from an aldehyde; general formula RCH=NN=CHR aldehyde(organic chemistry) Any of a large class of reactive organic compounds (R·CHO) having a carbonyl functional group attached to one hydrocarbon radical and a hydrogen atom.alderfly(fishing) An artificial fly with brown mottled wings, body of peacock harl, and black legs.aldermanA member of a municipal legislative body in a city or town.aldermenplural of alderman aldicarbA carbamate insecticide that acts as a cholinesterase inhibitor.aldimine(organic chemistry) An imine derived from an aldehyde; general formula RCH=NR aldolase(biochemistry) An enzyme, present in some tissue, that catalyses the conversion of phosphates of fructose to those of glyceraldehyde and dihydroxyacetone aldolate(organic chemistry) Any anion derived from an aldol aldolize(ambitransitive, organic chemistry) To (cause to) undergo aldolization; to convert into an aldol.aldonate(organic chemistry) Any salt or ester of an aldonic acid aldoside(organic chemistry) Any glucoside of an aldose.aldoxime(organic chemistry) Any oxime derived from an aldehyde; general formula RCH=NOH aleation(art, rare) Aleatoricism.aleatoryDepending on the throw of a die; random, arising by chance.alebench(historical) A bench at the front of an alehouse or inn where drinkers can sit.aleberryA beverage made by boiling ale with spice and sugar and sops of bread.alecostsplural of alecost alehouseA business, such as an inn or tavern, where ale is sold.aleksite(mineralogy) A trigonal-hexagonal scalenohedral steel gray mineral containing bismuth, lead, sulfur, and tellurium.alembickObsolete spelling of alembic.alembicsplural of alembic alephbetAlternative form of aleph-beth.alertestsuperlative form of alert: most alert alertingpresent participle and gerund of alert alestake(historical) A stake or pole serving as a sign at an alehouse or inn, often with a garland or "bush" attached.aleurain(biochemistry) A protease, found in barley, related to cathepsin aleurone(biochemistry) The protein content of the embryo, endosperm, or perisperm of cereals, in the form of minute particles.aleviateMisspelling of alleviate.alewivesplural of alewife alexical(rare) Not lexical.alfabetoNoodles shaped like letters of the alphabet.alfaquinAlternative form of alfaqui.alfenide(obsolete) An alloy of nickel and silver electroplated with silver. It was produced in Germany in the 19th century.alfisolsplural of alfisol alfrescoOutdoor, open to the atmosphere.algarobaThe carob, a leguminous tree of the Mediterranean region.algarothAlternative form of algarot.algebrasplural of algebra algenate(dentistry) plaster, made of sodium alginate, used to take impressions algerineA type of loosely woven cloth in stripes of bright colors, used for scarves, shawls and similar.algeriteAn altered form of scapolite, originally believed to be a unique mineral.algerobaAlternative form of algaroba.algicideA substance that kills, or inhibits the growth of, algae.algidity(medicine) The state of being algid.alginase(biochemistry) Any enzyme that hydrolyzes an algin alginate(biochemistry) Any salt or ester of alginic acid.alginite(petrology) A component of some types of kerogen, consisting of organic-walled marine microfossils.algivoreAn organism that consumes algae.algocyan(organic chemistry, archaic) A blue pigment found in algae, soluble in water and glycerol, with intense red fluorescence.algologyThe branch of botany dealing with algae.algorism(uncountable, historical) Calculation with Arabic numerals.algoristOne who develops algorithms.algraphy(photography, historical) An early photographic technique, similar to zincography or lithography, using paper impregnated with an aluminium salt.alguazilAn officer of the law in Spain or Latin America.alhidadeArchaic form of alidade.aliasingpresent participle and gerund of alias alibiingpresent participle and gerund of alibi alicocheAny of the genus Echinocereus of cacti.alicornsplural of alicorn alicycle(organic chemistry) Any alicyclic compound alidadesplural of alidade alienageThe status of being an alien; origin from elsewhere.alienans(rhetoric, philosophy) An alienans adjective.alienateTo convey or transfer to another, as title, property, or right; to part voluntarily with ownership of.alieneesplural of alienee alieniseBritish standard spelling of alienize.alienish(science fiction) Characteristic of an alien; alienlike alienismThe fact or position of being an alien; alienage.alienist(dated) An expert in mental illness, especially with reference to legal ramifications.alienize(transitive) To render (something or someone) alien alienorsplural of alienor aligartaObsolete form of alligator.alightedsimple past and past participle of alight alightenTo alight, to dismount or get down from.aligningpresent participle and gerund of align alimadol(pharmacology) An opioid analgesic related to methadone.alimentsplural of aliment alinasal(anatomy, archaic) Pertaining to expansions of the nasal bone or cartilage.alingual(linguistics) Using no language.alinotumThe anterior, wing-bearing division of the pterothoracic notum in insects.aliquant(mathematics, dated) An integer that is less than another, but that does not divide the other integer into integral parts.aliquotsplural of aliquot alitrunk(zoology) The segment of an insect's body to which the wings are attached; the thorax or mesosoma.alizaricRelating to, or derived from alizarin alizarin(organic chemistry) A red substance, 1,2-dihydroxyanthraquinone, extracted from madder root and used as a dye.alkahest(now historical) A universal solvent sought by the alchemists.alkalide(chemistry) A chemical compound in which alkali metals are anions (i.e. they bear a negative charge).alkaliedof horses or cattle in the western USA, having the health or strength detrimentally affected by drinking alkali-contaminated water.alkaliesplural of alkali alkalify(transitive) To render (more) alkaline (less acidic).alkalineOf, or relating to an alkali, one of a class of caustic bases.alkaliseAlternative form of alkalize.alkalize(transitive) To cause to become alkaline, more basic and less acidic.alkaloid(organic chemistry) Any of many organic (often heterocyclic) bases that occur in nature and often have medicinal properties.alkamide(organic chemistry) Any alkyl amide, especially a bioactive one alkamineA type of amino alcohol.alkanetsplural of alkanet alkanninA natural dye and naphthoquinone derivative obtained from the borage plant Alkanna tinctoria, used as a food colouring and in cosmetics.alkanoic(organic chemistry) Describing any simple aliphatic carboxylic acid, especially a fatty acid alkanone(organic chemistry) Any saturated aliphatic ketone alkanoyl(organic chemistry) acyl alkargen(obsolete, organic chemistry) cacodylic acid alkarsin(organic chemistry) cacodyl alkayidaA Ghanaian dance with an emphasis on side-to-side moves, sometimes performed as a group.alkenoic(organic chemistry) Describing any unsaturated aliphatic carboxylic acid alkenone(organic chemistry) Any unsaturated aliphatic ketone alkenoyl(organic chemistry) The acyl radical of an alkenoic acid alkermesA red Italian alcoholic liqueur.alkoxide(organic chemistry) Any organic compound derived from an alcohol by replacement of a hydrogen atom with a metal or other cationic species alkylate(organic chemistry) To add one or more alkyl groups to a compound, especially by reacting with an alkylating agent alkylene(obsolete, organic chemistry) An alkene.alkyloxy(organic chemistry) Alternative form of alkoxy.allanite(mineralogy) Any of a group of silicate minerals that are a source of rare earth metals.allative(grammar) Of or relating to the grammatical case that in some languages indicates motion towards a place.allayingpresent participle and gerund of allay alleadgeObsolete form of allege.allecretAlternative form of halecret.alledgedsimple past and past participle of alledge allegate(transitive, rare, nonstandard) To delegate.allegingpresent participle and gerund of allege allegoryA character or thing which symbolically represents someone or something else; an emblem, a symbol.allelism(genetics) The existence of two or more alleles of a gene alleluiaA liturgical or variant form of hallelujah.allemandMisspelling of allemande.allenoicOf or pertaining to an allenoic acid or its derivatives allergen(medicine) A substance which causes an allergic reaction.allergicOf or pertaining to allergy.allerionAlternative form of alerion.alleycatAlternative form of alley cat.alleyoopAlternative form of alley oop.alleywayA narrow street formed by the proximity of adjacent buildings.alliableAble to be allied alliacol(organic chemistry) Any of a group of sesquiterpene lactones found in the basidiomycete Marasmius alliaceus alliance(uncountable) The state of being allied.alligantObsolete form of alicant.alligateTo solve an arithmetic problem concerning proportions by means of alligation; to associate as having the same ratio.allinaseMisspelling of alliinase.allisideA particular steroid glycoside.allision(nautical) The striking of a vessel against a fixed object; the act of alliding or an instance thereof.allistic(neologism) Not autistic.allmouthAny of the order Lophiiformes of anglerfish, such as Lophius piscatorius.allocareCare given to an infant by an animal that is not the infant's parent.allocateTo set aside for a purpose.allochem(petrology) a grain of rock in a carbonate rock allocher(linguistics) In a sign language, any of two or more alternative hand signs for a chereme.allocute(chiefly US, law) To make an allocution.allodialAnything held allodially.allodistThe holder of an allodium.allodium(dated or historical) Freehold land or property; land held in allodial tenure, or one's title to such land.alloflap(surgery) A flap of skin used in allotransplantation alloformA distinct form of something treated as a single kind or species.allogamy(biology) The fertilization of an ovum from one individual with the spermatozoa of another; cross-fertilization alloglot(linguistics) Speaking a non-native language.allomone(biology) Any substance emitted by a member of one species that affects the behaviour of another to the advantage of the emitter but not the receiver allongesplural of allonge allonymyThe use of allonyms.allopathA practitioner of allopathy allosaurAny of several huge carnivorous dinosaurs, of the superfamily Allosauroidea, from the late Jurassic and early Cretaceous periods allosideA particular steroid glycoside.allosome(genetics) A sex chromosome that differs from an ordinary autosome in form, size, or behaviour.allosuck(biology, of an infant, rare) To suckle from a female who is not one's own mother.allotagm(linguistics, tagmemics) Any of the possible surface forms yielded by a tagmeme.allotone(phonetics) Any of the pitch allophones of a pitch phoneme.allotopeA region of an antibody with a non-varying structure.allotopyA contradiction between two basic meaning traits (semes) within a story.allottedsimple past and past participle of allot allotteeThe person to whom something is allotted.allotterOne who allots allotwinA twin crystal whose individuals are oriented crystal associations of different polytypes of the same compound allotype(zoology, taxonomy) A designated paratype of a species (or lower-order taxon) that is the opposite sex of the holotype.allotypyThe occurrence of multiple allotypes within a single individual.allovein(surgery) A vein from a donor allowingpresent participle and gerund of allow alloyageThe act or art of alloying metals.alloyant(metallurgy) A material added to a metal (possibly itself an alloy) to alter its properties.alloyingpresent participle and gerund of alloy allozyme(genetics, biochemistry) Either form of an enzyme specified by an allelic gene.allrightMisspelling of all right.allsortsLiquorice allsorts.allspice(countable) Pimenta dioica, an evergreen tree of tropical America with aromatic berries.allthing(obsolete) everything allthornThe plant Koeberlinia spinosa.alludingpresent participle and gerund of allude allulose(biochemistry) psicose alluringHaving the power to allure.allusionAn indirect reference; a hint; a reference to something supposed to be known, but not explicitly mentioned.allusivethat contains or makes use of allusions (indirect references or hints)allusoryallusive; making allusion alluvialPertaining to the soil deposited by a stream.alluvion(law) The increase in the area of land due to the deposition of sediment (alluvium) by a river.alluviumsoil, clay, silt or gravel deposited by flowing water, as it slows, in a river bed, delta, estuary or flood plain allwhere(archaic) everywhere allyhoodSynonym of allyship.allylate(organic chemistry) Any salt or ester of an allylic carboxylic acid (one containing an allyl radical)allylene(organic chemistry) propyne allylessWithout an ally.allyloxy(organic chemistry) any univalent radical R-O where R is an allyl group and O is an oxygen atom allyshipThe role or status of being an ally.allysine(biochemistry) The amino acid 2-amino-6-oxo-hexanoic acid derived from lysine almagateAn antacid containing aluminium and magnesium.almagestAny book resembling the Almagest.almajiriAn itinerant student at an Islamic school in northern Nigeria.almamateThe territory ruled by an almami.almanackArchaic spelling of almanac.almanacsplural of almanac almander(obsolete) almond tree almandinAlternative form of almandine.almeriesplural of almery almighty(sometimes postpositive) Unlimited in might; omnipotent; all-powerful almonersplural of almoner almoningThe distribution of alms; the work of an almoner.almsdeedThe giving of alms; an act of charity, a good work.almsfolk(archaic) Persons supported by alms; almsmen.almslessNot having any alms; impoverished.almyghtyArchaic spelling of almighty.alnusiin(organic chemistry) A particular ellagitannin.alocasiaAny of several tropical Asian plants, of the genus Alocasia, having heart- or arrowhead-shaped leaves.alodiaryAlternative form of allodiary.aloedary(obsolete) A compound purgative medicine of which aloes is a chief ingredient.aloelikeResembling or characteristic of aloe.aloetickObsolete form of aloetic.aloewoodSynonym of agarwood.alogicalNot based upon logic or reasoned argument.alongestObsolete form of alongst.alopecicRelating to or suffering from alopecia.alopekisA Thracian cap made from a fox scalp.alouatte(now rare) A South American howler monkey (of the genus Alouatta).alphabetThe set of letters used when writing in a language.alphenal5-allyl-5-phenylbarbituric acid, a barbiturate derivative formerly used to treat epilepsy and convulsions.alphenic(rare) White barley sugar alphette(informal, rare) An alpha female; a confident, self-assured woman.alphornsplural of alphorn alphosis(medicine, obsolete) Albinism.alpinelyIn an alpine way, loftily.alpinism(sometimes capitalized) Mountain climbing.alpinistOf or pertaining to alpinism.alqueire(historical) A traditional Portuguese unit of dry measure, equal to 13.1–19.3 liters in different 19th-century contexts.alquifou(obsolete) A lead ore found in Cornwall, England, and used to give a green glaze to pottery.alreadieObsolete spelling of already.alrighty(informal) Used to affirm, indicate agreement, or consent.alsatianAlternative letter-case form of Alsatian.alsifilmA thin, transparent, flexible film made from bentonite.alstoniaAny of the genus Alstonia of evergreen trees and shrubs in the dogbane family Apocynaceae.alstoninAlternative form of alstonine.altarageThe offerings made upon the altar or to a church.altarist(obsolete or historical) Someone responsible for or at a church's altar altarity(philosophy) Otherness exalted as if a religious concept.altepetlA Nahua community; a pueblo.alterantSomething that causes alteration, that alters.alterersplural of alterer alteringpresent participle and gerund of alter alterity(philosophy, anthropology) Otherness; the entity in contrast to which an identity is constructed.alternan(biochemistry) The glucan produced by the enzyme alternansucrase.alternatThe custom, among diplomats, of rotation in precedence among representatives of equal rank, sometimes determined by lot and at other times in regular order. The practice obtains in the signing of treaties and conventions between nations.alterousPertaining to or characterized by alterity (otherness, the entity in contrast to which an identity is constructed); other.alterredMisspelling of altered.althaeasplural of althaea altheine(organic chemistry, archaic) asparagine althesin(medicine) A hypnotic agent that is a mixture of alphaxalone and alphadolone althoughThough, even though, in spite of or despite the fact that: introducing a clause that expresses a concession.alticine(taxonomy) Relating to the Alticini tribe of flea beetles altigramA plot of altitudes produced by an altigraph.altincar(obsolete) tincal altiportA small airfield at high altitude, typically at a French skiing resort altisite(mineralogy) A monoclinic-prismatic white mineral containing aluminum, chlorine, oxygen, potassium, silicon, sodium, and titanium.altitudeThe absolute height of a location, usually measured from sea level.altizideA diuretic drug.altosideA particular steroid glycoside.altosome(genetics) An asymmetric structure of nucleosomes produced by modifying a polynucleosomal array.altricalAlternative form of altricial.altrices(zoology, archaic) altricial birds.altruismRegard for others, both natural and moral without regard for oneself; devotion to the interests of others; brotherly kindness.altruistA person showing altruism.alucitid(zoology) Any member of the Alucitidae.aluminiaalumina; aluminium oxide aluminic(chemistry) Of, relating to or containing aluminium.aluminonThe triammonium salt of aurintricarboxylic acid, commonly used as a dye to detect the presence of the aluminium ion in an aqueous solution.aluminumAmerican, Canadian, and Philippines standard spelling of aluminium.aluminyl(inorganic chemistry, especially in combination) Aluminium in the +1 oxidation state.alumrootAny of several perennial herbs, of the genus Heuchera, native to North America.alunogen(mineralogy) An aluminium sulfate mineral often found on the walls of mines and quarries.alurgite(mineralogy) A manganese mica that occurs in purplish colours.alvanite(mineralogy) A monoclinic-prismatic mineral containing aluminum, hydrogen, nickel, oxygen, vanadium, and zinc.alveatedFormed or vaulted like a beehive.alveicinA particular bacteriocin produced by the bacterium Hafnia alvei.alveolaeMisspelling of alveoli.alveolar(anatomy, relational) Relating to the alveoli (small air sacs) of the lungs.alveolin(biochemistry) A type of protease similar to astacin alveolusA small cavity or pit.alverine(pharmacology) A drug used to treat functional gastrointestinal disorders.alvikite(mineralogy) A fine-grained form of sovite alyaunteObsolete spelling of alien.alyssumsplural of alyssum alytarchAn official responsible for maintaining order at the ancient Olympic Games.amacrine(biology) Without long processes.amadavatAn estrildid finch, Amandava amandava, of India and Southeast Asia, commonly kept and bred as a cagebird.amaduvadAlternative form of avadavat.amakweta(South Africa) An abakwetha.amalaita(South Africa) A member of an urban criminal gang.amalgamaArchaic form of amalgam.amalgamsplural of amalgam amalthea(botany, obsolete) An aggregation of dry fruits within a calyx which does not become fleshy, as in Alchemilla or Sanguisorba.amandineA cosmetic cream prepared from almonds.amanitasplural of amanita amanitin(biochemistry) A deadly amatoxin found in Amanita phalloides (the death cap), the four destroying angels (Amanita bisporigera, Amanita ocreata, Amanita verna, and Amanita virosa), and some other amanitas.amapiano(music, South Africa) A house music subgenre that emerged in South Africa, often incorporating jazz piano and lounge music.amaracus(obsolete) Marjoram.amaranthAny of various herbs of the genus Amaranthus.amarelleAlternative letter-case form of Amarelle.amarettiplural of amaretto amaretto(countable) A serving of that liqueur.amassersplural of amasser amassingpresent participle and gerund of amass amastrid(zoology) Any snail in the family Amastridae.amateursplural of amateur amateuseA female amateur.amatoxin(toxicology) Any of a class of toxic peptides produced by several mushrooms of the genus Amanita and others.amatriceAlternative form of amatrix.amavadin(biochemistry) A complex anion, containing vanadium, found in some species of Amanita mushrooms amazedlyIn an amazed manner.amazeful(archaic) Full of amazement; astonished.amaziqueAn African tree of the genus Guibourtia ambalamaA simple structure built to provide shelter to travellers in Sri Lanka.ambassid(zoology) Any fish in the family Ambassidae.ambazoneA particular oral antiseptic.amberishSomewhat amber in colour.amberiteA kind of smokeless powder.amberoidA synthetic amber manufactured by melting and compressing chips of natural amber, sometimes with other resins.amberousamber-coloured ambianceA particular mood or atmosphere of an environment or surrounding influence.ambident(chemistry) Describing a molecule or group that has two alternative and interacting reaction sites, to either of which a bond may be made during a reaction ambienceAlternative spelling of ambiance.ambigramA calligraphic design that may be read as the same word or phrase (or sometimes different words or phrases) when oriented in two different ways, usually when reflected along a vertical or horizontal axis or when rotated through 180 degrees.ambilogyWords or language of doubtful meaning.ambiodic(physics) Relating to, functioning as, or occurring at either a cathode or an anode.ambition(countable) An object of an ardent desire.ambivert(psychology) A person who is neither clearly extroverted nor introverted, but has characteristics of each.ambivore(chiefly biology) An animal that feeds on two varieties of food.amblosisabortion (termination of pregnancy)ambloticCausing or relating to amblosis; abortifacient.amblygon(geometry, obsolete, rare) An obtuse-angled shape, especially an obtuse triangle.amblyopeA person afflicted with amblyopia.amblyopyDated form of amblyopia.ambonite(mineralogy) A mineral consisting of cordierite-bearing hornblende-biotite-andesite.ambosideA particular steroid glycoside.ambreate(obsolete, chemistry) A salt of ambreic acid.ambretteThe musk mallow plant (Abelmoschus moschatus).ambrosia(Greek mythology, Roman mythology) The food of the gods, thought to confer immortality.ambrosin(numismatics) An early coin struck by the dukes of Milan, and bearing the effigy of St. Ambrose on its horseback.ambroxol(organic chemistry, pharmacology) A secretolytic agent used in the treatment of respiratory diseases associated with viscid or excessive mucus, C₁₃H₁₈Br₂N₂O.ambsacesplural of ambsace ambulantAble to walk; ambulatory.ambulate(intransitive, formal) To walk; to relocate oneself under the power of one's own legs.ambulism(pathology) A disorder involving walking.ambushedsimple past and past participle of ambush ambusheeOne who is ambushed.ambusherOne who ambushes.ambushesplural of ambush amebosisAlternative spelling of amoebosis.amedalinAn antidepressant drug, synthesised in the 1970s but never marketed.ameerate(rare) An emirate.ameiosis(biology) The absence of pairing of chromosomes during meiosis ameiotic(biology) Not undergoing meiosis; relating to ameiosis amelcorn(archaic) Any of several types of awned wheat having a high starch content, especially emmer (Triticum turgidum subsp. dicoccum).amelodic(sound) Not melodic amelotin(biochemistry) A protein secreted by ameloblasts during tooth development amenableWilling to respond to persuasion or suggestions.amenablyIn an amenable manner.amenance(obsolete) Conduct, demeanor.amendersplural of amender amendful(obsolete) Much improving.amendingpresent participle and gerund of amend amentialRelating to amentia americyl(inorganic chemistry) The oxygenated cation of americium AmO₂⁺amethystA transparent purple to violet variety of quartz with traces of manganese, used as a gemstone.ametrineA naturally occurring variety of quartz, with zones of purple and yellow or orange.amiantusAlternative spelling of amianthus.amicableShowing friendliness or goodwill.amicablyFriendly; in an amicable manner.amicetinA particular antibiotic isolated from Streptomyces amidasesplural of amidase amidated(organic chemistry) Converted into, or reacted with an amide amidinesplural of amidine amidmostIn the very middle; central.amidogen(inorganic chemistry, dated) The amino radical, •NH₂, the neutral form of the amide ion −NH₂⁻, regardable as the ammonia molecule with one of its hydrogen atoms removed.amidshipIn the middle of a ship (as opposed to bow or stern).amidulinsoluble starch, so rendered by boiling or treating with hydrochloric acid amiiform(zoology) Of or relating to the Amiiformes amikacin(pharmacology) A semisynthetic aminoglycoside antibiotic that is derived from kanamycin and is administered intravenously or intramuscularly in the form of its sulfate C₂₂H₄₃N₅O₁₃·2 H₂SO₄ to treat serious bacterial infections.aminooxy(organic chemistry, often in combination) The univalent radical NH₂-O-aminorexAn anorectic stimulant drug of the 2-amino-5-aryl oxazoline class.aminoxyl(organic chemistry) Any organic derivative of the radical R₂NO^. R₂N^(.+)-O⁻aminuria(pathology) The presence of amines in the urine amirightAlternative form of am I right.amirshipAlternative form of emirship.amissingMissing, lacking.amission(obsolete) deprivation; loss amitosis(obsolete, biology) cell division by cleavage of the nucleus without the formation of condensed chromosomes amitoticOf or pertaining to amitosis amitrole(organic chemistry) The heterocyclic amine 3-amino-1,2,4-triazole that is used as a nonselective systemic triazole herbicide on nonfood croplands amlakdar(historical) A senior tax collector in what is now Uzbekistan.ammelide(organic chemistry) 6-amino-2,4-dihydroxy-1,3,5-triazine, the hydrolysis product of ammeline.ammeline(organic chemistry) 4,6-diamino-2-hydroxy-1,3,5-triazine, the hydrolysis product of melamine.ammetersplural of ammeter ammoceteAlternative form of ammocoete.ammodyte(obsolete) One of the genus Ammodytes of fishes; the sand eel.ammoliteA rare and valuable opal-like gemstone, made of the fossilized shells of ammonites.ammoniacOf or relating to ammonia, or possessing its properties.ammonian(mineralogy) Containing ammonium cations.ammoniasplural of ammonia ammonify(transitive) To treat with ammonia; to ammoniate; to form into ammonia.ammoniidSynonym of rotaliid.ammonite(paleontology) Any of an extinct group of cephalopods of the subclass Ammonoidea; a fossil shell of such an animal.ammonium(inorganic chemistry) The univalent NH₄⁺ cation, derived by the protonation of ammonia ammonizeSynonym of ammoniate.ammonoidAn extinct cephalopod of the subclass †Ammonoidea (including ammonites).amnesiacPerson who suffers from loss of memory (amnesia).amnesiasplural of amnesia amnestic(medicine) Synonym of amnesic (adjective).amnihook(medicine) A baton with a slightly hooked end, used to perform amniotomy.amnionicAlternative spelling of amniotic.amniotesplural of amniote amnioticPertaining to the amnion.amodallyIn an amodal manner amoebeanDescribing a form of prosody (amoebaeum) featuring alternating responses.amoebian(zoology) One of the amoebae.amoeboic(biology) Alternative form of amoeboid.amoeboidResembling or characteristic of an amoeba, particularly in having amoeboid movement.amoeboma(Commonwealth) Alternative spelling of ameboma.amoebousAlternative spelling of amebous.amolillaThe plant Agave bulliana.amongestObsolete form of amongst.amorallyIn an amoral manner; without morals.amorette(obsolete) Alternative spelling of amoret.amorettiplural of amoretto amoretto(art) A cupid or putto (representation of a naked baby or small child, often with wings).amoristsplural of amorist amorphasplural of amorpha amorphiaSynonym of amorphism.amorphicHaving no defined shape, lacking form; amorphous.amorphus(pathology) A malformed foetus amortise(British spelling) Alternative form of amortize.amortize(real estate, property law, transitive) To alienate (property) in mortmain.amoulder(intransitive) To moulder; to decay.amountedsimple past and past participle of amount amoureuxA lover; a romantic partner.amouristAlternative form of amorist.amourousMisspelling of amorous.ampacityThe root mean square of the electrical current which a device (usually a wire) can carry within a specific environment (including temperature rating, power loss, heat dissipation, etc.) It is measured in amperes (amps) and is most often used to rate electrical wires and cables.ampakineAny of a class of chemical compounds that enhance attention span and alertness and facilitate learning and memory.ampalaya(Philippines) bitter melon ampelite(mineralogy) A carbonaceous alum schist.amperage(physics) The electric current; charge transmitted per unit time, measured in amperes.ampersat(rare) The at sign (@).amphibiaThe amphibians.amphidalRelating to amphids.amphilicMisspelling of amphiphilic.amphipodAny species of the taxonomic order Amphipoda of small, shrimp-like crustaceans.amphipolAny of a range of amphipathic polymers used as speciality surfactants amphisin(biochemistry) A cyclic lipoundecapeptide present in some strains of Pseudomonas amphiuma(zoology) Any of the genus Amphiuma of aquatic salamanders.amphoion(chemistry) zwitterion amphoraeplural of amphora amphoralOf, pertaining to, or in the shape of an amphora amphorasplural of amphora amphoric(medicine) Produced by or indicating a hollow cavity in the lungs, giving a sound like that produced by blowing into an empty decanter.amplexus(botany) In vernation, the situation where two sides of one leaf overlap the two sides of the one above it.ampliate(zoology) Having the outer edge prominent; said of the wings of insects.ampliconA piece of DNA or RNA formed as the product of natural or artificial amplification events, as in a polymerase chain reaction amplimer(biochemistry) A piece of DNA formed as the products of natural or artificial amplification events, as in a polymerase chain reaction.ampoulesplural of ampoule ampullaeplural of ampulla ampullarResembling an ampulla.ampusand(obsolete, rare) Synonym of ampersand.amputateTo surgically remove a part of the body, especially a limb. [from 17th c.]amputeesplural of amputee ampyroneA metabolite of aminopyrine with analgesic, anti-inflammatory, and antipyretic properties.ampyzineA sugar nitrile.amredita(Sanskrit grammar) A compound consisting of the same word repeated with the first occurrence accented, used to express repetitiveness or distributivity.amrinone(pharmacology) A type 3 pyridine phosphodiesterase inhibitor used to treat congestive heart failure.amuletedAdorned with an amulet.amuleticOf or pertaining to an amulet; operating as a charm.amuletteObsolete form of amulet.amurcous(archaic) Smelly; stinky.amusableCapable of being amused.amusedlyIn an amused manner amusetteA light field cannon, or stocked gun mounted on a swivel.amyelous(medicine, dated) Lacking the spinal cord.amygdala(neuroanatomy) Each one of the two regions of the brain, located as a pair in the medial temporal lobe, believed to play a key role in processing emotions, such as fear and pleasure, in both animals and humans.amygdale(geology) An almond-shaped inclusion in igneous rock or lava.amygdule(geology) A rounded mass of secondary mineral found in volcanic rock.amylasesplural of amylase amylasicRelating to amylase amylogenThe water-soluble part of granulose.amylosesplural of amylose amyluria(medicine) A condition in which starch is found in the urine.anabaenaAny cyanobacterium of the genus Anabaena.anabasis(historical) A military march up-country, especially that of Cyrus the Younger into Asia.anabatic(of a warm air current) rising (up a slope)anabiongThe flowering tree Trema orientale.anablepsSynonym of four-eyed fish.anabolicOf or relating to anabolism.anacidicNot acidic; free from acid.anacline(biology, of brachiopods) The part of a shell in which the interarea is at an angle of less than 90° to the plane of commissure anaconda(countable) Any large nonvenomous snake of the genus Eunectes, found mainly in northern South America. [from 19th c.]anacusic(medicine) Totally deaf.anacusis(medicine) Total deafness.anadenia(medicine) Insufficiency or lack of glands, especially those of the gastrointestinal system.anadromeA word which forms a different word when spelled backwards.anadromyThe migration of fish, from salt water to fresh water, as adults anaemialRare spelling of anemial.anaemiasplural of anaemia anaerobeAn anaerobic organism; one that does not require oxygen to sustain its metabolic processes.anafront(meteorology) A warm or cold front at which there is upward movement of the warm-sector air above the cold-sector air, commonly producing clouds and precipitation on the cool side of the boundary.anagalidAn extinct mammal of the family Anagalidae or genus Anagale anagenicRelating to anagenesis.anaglyphA decorative ornament worked in low relief or bas relief, such as a piece of cameo jewelry.anagnost(now chiefly historical) Someone who reads aloud, especially who reads lessons, passages etc. during a church service.anagogesplural of anagoge anagogicOf, pertaining to, or employing an anagoge anagramsplural of anagram anagraphA kind of anagram.anagrind(crosswording) Part of a cryptic crossword clue indicating that the letters of another word or phrase in the clue should be anagrammed.anaheimsplural of anaheim anakinra(pharmacology) A drug that blocks the activity of interleukin-1 and is administered as a subcutaneous injection chiefly in the treatment of rheumatoid arthritis. It is a recombinant form of an endogenous antagonist of interleukin-1 receptor and is marketed under the trademark Kineret.anakusisAlternative form of anacusis.analcime(mineralogy) A sodium aluminosilicate with a chemical formula NaAlSi₂O₆·H₂O, having a zeolite structure, found in alkaline basalts.analcite(mineralogy) Analcime.analectsA collection of excerpts or quotes.analemmaA figure-eight curve that results when the Sun's position in the sky is plotted out over the year at the same hour of mean solar time every day. [from 17th c.]analepsy(medicine) analepsis analgeneAn antipyretic and analgesic, derived from quinoline and mainly used to treat rheumatism and neuralgia.analgese(medicine) To apply or administer analgesia to.analogal(obsolete) Analogous.analogicOf or pertaining to analogy.analogly(rare) In an analog manner.analogue(Commonwealth) Alternative spelling of analog.analward(biology) Toward the anus.analyistMisspelling of analyst.analysedsimple past and past participle of analyse analyser(British spelling) Alternative spelling of analyzer.analysesplural of analysis analysis(countable) Decomposition into components in order to study (a complex thing, concept, theory, etc.).analystsplural of analyst analytesplural of analyte analyticOf, or relating to any form of analysis, or to analytics.analyzedHaving been subject to analysis; examined closely, carefully considered.analyzer(US) an instrument for the analysis of something analyzesthird-person singular simple present indicative of analyze analyzisMisspelling of analysis.anamixid(zoology) Any amphipod in the family Anamixidae.anamonicA mnemonic used for recalling lists of words, particularly in Scrabble, consisting of a "stem" of base letters and an accompanying phrase, each of whose letters can combine with the stem to form an anagram of a word.anamorph(biology) The asexual reproductive form in the life cycle of any fungus of the phyla Ascomycota and Basidiomycota.anancasm(philosophy) In the philosophy of Charles Peirce, a mode of evolution occurring by mechanical necessity.anancine(zoology) Any of the extinct genus Anancus of elephantoid proboscideans native to Afro-Eurasia.anandite(mineralogy) A usually monoclinic mineral of the mica group.anandria(pathology) A lack of male virility anangeon(rhetoric) A justification of an action by inevitability or necessity.anaortic(medicine) Pertaining to avoidance of manipulation of the aorta in coronary artery surgery, also described as aortic no-touch technique.anapaest(UK) Alternative form of anapest.anapaite(mineralogy) A triclinic-pinacoidal mineral containing calcium, hydrogen, iron, oxygen, and phosphorus.anapestsplural of anapest anaphase(cytology) The stage of mitosis and meiosis during which the chromosomes separate, the chromatid moving to opposite poles of the cell.anaphone(music) A particular sign as represented in music; a sound or melody that represents something, such as motion or romance.anaphora(rhetoric) The repetition of a phrase at the beginning of phrases, sentences, or verses, used for emphasis.anarchal(archaic) lawless; anarchic anarchicRelating to, supporting, or likely to cause anarchy.anasarca(medicine) Severe generalised oedema.anastate(biology) One of a series of substances formed, in secreting cells, by constructive or anabolic processes, in the production of protoplasm.anastole(obsolete, pathology) retraction of the edges of a wound anastral(biology) Lacking asters anasyrmaThe gesture of lifting up the skirt or kilt to expose the buttocks or genitalia.anataxis(linguistics) difference in ordering between consecutive syntactic layers anatexis(geology) The metamorphism of plutonic rock into magma in the lower levels of the crust anathema(by extension) Something which is vehemently disliked by somebody.anatomicOf or pertaining to anatomy and dissection, or to individual structures of the anatomy.anatomid(zoology) Any sea snail in the family Anatomidae.anatoxicRelating to anatoxins.anatoxinA bacterial toxin (usually an exotoxin) whose toxicity has been weakened or suppressed anatreme(palynology, of a pollen grain) Having a single aperture on the distal face anatropy(botany) The condition of being anatropous anaxonal(of a neuron) Lacking neurites ancestimA recombinant methionyl human stem cell factor.ancestorAn earlier type; a progenitor.ancestryThe state of being ancestors.anchientObsolete form of ancient.anchoredsimple past and past participle of anchor anchorerOne who or that which anchors.anchoretAlternative spelling of anchorite.anchorin(biochemistry) Any of a group of collagen-binding proteins related to annexin anchressAlternative form of anchoress (“female anchorite”).anchusasplural of anchusa anchusicRelated to anchusin.anchusin(organic chemistry) alkannin ancienceSynonym of ancientness.ancientsplural of ancient ancienty(obsolete) age; antiquity ancodontAny mammal in the infraorder Ancodonta— hippos and their extinct relatives.anconeal(anatomy) Of or pertaining to the elbow.anconeus(anatomy) A muscle of the elbow and forearm.anconoidanconal; resembling the elbow anctiousObsolete form of anxious.ancylite(mineralogy) A basic carbonate mineral of strontium and rare earth elements.andartes(military) The Greek resistance, and its members, during World War II andative(grammar) Indicating motion away from something.anderoonObsolete form of anderun.andesine(mineralogy) Sodium calcium aluminum silicate, (Na_xCa_xAlSi_3O_8), a plagioclase feldspar, the third member of the albite-anorthite solid solution series. Found in fine-grained andesite lavas; crystals are rarely seen.andesite(geology) Any of a class of fine-grained intermediate igneous rock, of volcanic origin, containing mostly plagioclase feldspar.andesyteAlternative spelling of andesite.andirobaAny of the South and Central American trees of the genus Carapa, especially Carapa guianensis.andironsplural of andiron andirovaArchaic form of andiroba.andolastA bronchodilator drug.andorite(mineralogy) A white mineral containing antimony, lead, silver, and sulfur.andrenid(zoology) Any member of the family Andrenidae of bees.androecyThe condition of being androecious androgen(biochemistry, steroids) Any natural or synthetic compound, usually a steroid hormone, that stimulates or controls the development and maintenance of masculine characteristics in vertebrates. A male sex hormone such as testosterone or anabolic steroids.androidsplural of android andronymA man's name or a word derived from a man's name.anduoite(mineralogy) An orthorhombic-dipyramidal lead gray mineral containing arsenic, osmium, and ruthenium.anecdata(usually humorous or derogatory) Anecdotal evidence.anecdotaplural of anecdoton anecdoteA short account of a real incident or person, often humorous or interesting.anechoic(acoustics) Lacking echoes; particularly, designed to absorb sound.anelliniA type of pasta composed of little rings.anelloniA type of pasta similar to rigatoni but with ridges on the inside.anemiousPertaining to anemia.anemonesplural of anemone anemonin(organic chemistry) An acrid toxic substance obtained from some species of anemone.anemonolprotoanemonin anemosisA shake in timber caused by high winds.anephric(pathology) Without functioning kidneys.anergize(immunology) To have (or to cause to have) no response to an antigen or antibody anerobicAlternative spelling of anaerobic.aneroidsplural of aneroid anestrumSynonym of anestrus.anestrus(zoology) In female placental mammals—excluding humans and great apes—a phase of the estrous cycle during which the sexual cycle rests.anetheneA hydrocarbon with the chemical formula C₁₀H₁₆, found in oil of dill.anethole(organic chemistry) A particular aromatic compound found in anise.aneugenyThe creation of aneuploid gametes.aneurismAlternative spelling of aneurysm.aneurysm(pathology) An abnormal blood-filled swelling of an artery or vein, resulting from a localized weakness in the wall of the vessel.aneusomyThe condition of having aneusomaty angakkuqAn Inuit shaman.angarkha(India) A traditional outer upper garment worn by men, tied using strings in place of buttons.angatkuqAn Inuit shaman.angekkokAlternative spelling of angekok.angelageThe existence or state of angels.angelate(organic chemistry) A salt or ester of angelic acid.angeldomThe world of angels.angelicaA tall plant, with hollow stems, genus Angelica, especially garden angelica (Angelica archangelica).angelickObsolete form of angelic.angelify(obsolete, transitive) To make like an angel; to angelize.angeliseNon-Oxford British English standard spelling of angelize.angelismA doctrine that regards humans as angelic.angelistA proponent of angelism angelize(transitive) To raise to the state of an angel; to render angelic.angelledsimple past and past participle of angel angeloyl(organic chemistry, especially in combination) A univalent radical formally derived from angelic acid by removal of the hydroxyl group angerfulFull of anger, expressing anger.angeringpresent participle and gerund of anger angiitisA condition where blood or lymph vessels are inflamed.anginoidResembling or relating to angina.anginose(dated) Relating to angina; anginous.anginousOf or pertaining to angina, especially to angina pectoris angiomasplural of angioma angiosis(pathology) Any disease of the blood vessels angiport(obsolete) A narrow road passing between two houses or a row of houses, or an alley leading to a single house.angklungA percussion instrument, originally from Indonesia, made of two or more bamboo tubes attached to a bamboo frame, which is shaken.anglaise(historical) A kind of English country dance.angledog(dialectal, chiefly New England, dated) An earthworm.anglerod(rare) fishing rod anglingsplural of angling angriestsuperlative form of angry: most angry angriticOf, pertaining to, or containing angrite angstfic(countable) A fanfic which deals with tragic situations and themes.angstfulFull of angst; fearful; apprehensive angstrom(physics, metrology) A unit of length equal to 10⁻¹⁰ meters (that is, one ten-billionth of a meter), approximately the size of an atom, and denoted by the symbol Å, used especially to measure the wavelength of electromagnetic radiation or distances between atoms.anguinidAny of the genus Anguina of nematodes.anguipedHaving serpents (or similar) in place of legs anguishtObsolete form of anguished.angulateShaped with corners or angles.anguloidSomewhat angular anguloseAlternative form of angulous.angulous(archaic) angular; having corners anhaline(organic chemistry) An alkaloid, 4-[2-(dimethylamino)ethyl]phenol, found in peyotes of the genus Anhalonium anhedral(mineralogy) Lacking sharp, recognisable crystal faces.anheloseAlternative form of anhelous.anhelous(archaic) Short of breath; panting or gasping anhingasplural of anhinga anhingid(zoology) Any member of the Anhingidae.anhungry(obsolete, rare) Hungry.anianiauA bird, Magumma parva, a kind of Hawaiian honeycreeper.aniconicOf or pertaining to representations without human or animal form.anilidesplural of anilide anilinesplural of aniline anilinic(organic chemistry) Relating to aniline anilopamAn opioid analgesic of the benzazepine class.animableCapable of being put into life or receiving animation.animalic(rare) Of or concerning animals.animallyResembling or characteristic of an animal.animanga(uncountable) Japanese comics (manga) and Japanese animation (anime) taken collectively.animatedFull of life or spirit; lively; vigorous; spritely.animaterAlternative form of animator.animatesthird-person singular simple present indicative of animate animaticAn animated storyboard used as a rough preview of a film or advertisement.animator(art) One who creates an animation or cartoon; a cartoonist.animistsplural of animist animusesplural of animus anionize(transitive) To treat with anions.anionoidDescribing the anionic part of a zwitterion anipamil(pharmacology) A calcium channel blocker.aniridiaA rare congenital condition characterized by the underdevelopment of the iris of the eye.aniridicLacking the iris of the eye; exhibiting aniridia.anirolac(pharmacology) A nonsteroidal anti-inflammatory drug.anisakid(zoology) Any nematode in the family Anisakidae; they can cause anisakiasis among humans who eat infected raw fish.anisatin(organic chemistry) A toxic, insecticidal component of the shikimi plant (Illicium anisatum).aniseedsplural of aniseed aniseedy(informal) Resembling or characteristic of aniseed.anisetteA French alcoholic liqueur flavored with anise anisolesplural of anisole anjumaraSynonym of aimara (“type of fish”).ankerite(mineralogy) Any of a group of mixed carbonate minerals, principally of calcium with iron, magnesium and manganese.anklefulA quantity that covers or fills an ankle.ankletedWearing an anklet or anklets.ankylose(transitive, pathology) To cause bony structures to fuse or stiffen as a result of ankylosis.annaliseNon-Oxford British English standard spelling of annalize.annalistA writer of annals; a chronicler; a historian.annalize(transitive) To record in annals.annalled(poetic) Recorded in annals; documented.annealedsimple past and past participle of anneal annealerA device or process that anneals.annelidsplural of annelid anneloid(dated, zoology) Any animal resembling an annelid.anneloniMisspelling of anelloni.annexingpresent participle and gerund of annex annexion(obsolete) annexation annexiveRelating to annexation.annexure(UK) The process of annexing anniseedMisspelling of aniseed.annosity(rare) Fullness of years; great length of life; agedness; lengthiness of life span.annotate(transitive) To add annotation to.announce(transitive) To give public notice of, especially for the first time; to make known.annoyant(rare) Synonym of annoying.annoybot(computing, slang) A bot within an IRC channel that sends annoying messages to online participants.annoyful(obsolete) annoying annoyingCausing irritation or annoyance; troublesome; vexatious.annoyous(obsolete) troublesome; annoying annuallyOnce every year without fail, yearly annulary(archaic) Having the shape of a ring; annular.annulateHaving an annular form or shape.annulene(organic chemistry) Any monocyclic hydrocarbon, of general formula CₙHₙ (where n is even), or CₙHₙ₊₁ (where n is odd).annuletsplural of annulet annulledcancelled or void annullerAlternative spelling of annuler.annuloid(zoology, obsolete) Of or pertaining to the Annuloida, an obsolete classification of various annelids and similar animals.annuloseFurnished with, or composed of, rings or ring-like segments; ringed.anocracy(politics) A political system which is neither fully democratic nor fully autocratic, often being vulnerable to political instability.anodallyTowards an anode.anodisedsimple past and past participle of anodise anodizedsimple past and past participle of anodize anodizerOne who or that which anodizes.anodizesthird-person singular simple present indicative of anodize anodynesplural of anodyne anodynia(medicine) The absence of pain in a previously painful region.anodynicIn the way of an anodyne, relating to relief from pain.anoikismThe splitting up of a town into smaller units anointedsimple past and past participle of anoint.anointeeThe person or thing that is anointed anointerOne who anoints.anomalad(medicine) A primary malformation together with its subsequently derived structural changes.anomeric(organic chemistry) Relating to or characteristic of an anomer.anomopodAny crustacean of the suborder Anomopoda.anomuran(zoology) Any of the Anomura.anonette(Internet slang, 4chan slang) Synonym of femanon (“a female user of 4chan”).anonymal(obsolete) Anonymous [16th–17th c.]anoopsia(medicine) A condition in which one eye gazes upward while the other looks straight ahead.anophyte(botany) A moss or similar plant with cellular stems, having usually an upward growth and distinct leaves.anopubic(anatomy) Relating to the anus and pubis.anorakedWearing an anorak.anorchia(medicine) An intersex condition of XY individuals where both testes are absent at birth.anorchic(medicine) Without testes.anorchidLacking testicles.anordrinA synthetic steroidal estrogen used as a postcoital contraceptive.anoreticAlternative form of anorexic.anorexia(especially in medicine) Loss of appetite, especially as a result of disease.anorexicPertaining to, or suffering from, anorexia nervosa.anorthic(crystallography) Having three unequal axes that intersect obliquely anoscopeThe instrument used in anoscopy.anoscopy(medicine) An examination using a small, rigid, tubular instrument called an anoscope which is inserted into the anal canal anosmiasplural of anosmia anourousAlternative form of anurous.anovularSynonym of anovulatory.anoxemiaAlternative spelling of anoxaemia.anoxemicAlternative form of anoxaemic.ansafone(British, New Zealand, colloquial) Alternative form of answerphone.anserineSilly, foolish, stupid.anserousresembling a goose ansiformHaving the form of a loop ansonicaA white grape variety used in various parts of Italy ansotomy(surgery) The division of a loop, especially of one that forms a constriction.answeareObsolete spelling of answer.answerdeObsolete spelling of answered; past of answer.answeredHaving an answer answererA person who, or thing that, answers or responds.answeresplural of answere antabuseAlternative letter-case form of Antabuse.antacidsplural of antacid antacridAn antacrid drug.antagony(chiefly obsolete) antagonism (opposition, contest)antalgic(medicine) alleviating pain antbearsplural of antbear antbirdsplural of antbird anteallyAt the front; on the foremost portion.anteaterAny of some other not closely related species that feed with ants, including pangolin (scaly anteater), echidna (spiny anteater), aardvark (African anteater) and numbat (banded anteater).antecedeTo go before; to precede.antedateTo occur before an event or time; to exist further back in time.antedrugA drug that is designed to act upon a desired site within the body, and then rapidly become inactive upon entering the systemic circulation.antefact(obsolete) Something done before another act.antefixa(architecture) Alternative form of antefix.antelopeAny of several African mammals of the family Bovidae distinguished by hollow horns, which, unlike deer, they do not shed.antemaskObsolete form of antimasque.antenatiThose born before a certain event, such as the Union of England and Scotland Act 1603 or the United States Declaration of Independence.antennaeplural of antenna antennalOf, pertaining to, or functioning as an antenna.antennasplural of antenna antepast(obsolete) A foretaste.anteportA hanging or covering in front of a door.antepost(gambling) Being a kind of bet, in horse-racing and greyhound racing, placed before the racecourse's betting market has opened, on the expectation that the price of the animal is presently more favourable than it will be when the market opens.anteriad(biology) Towards the anterior part of the body anterior(anatomy) Nearer the forward end, especially in the front of the body; nearer the head or forepart of an animal.anterity(rare) All the past generations, especially the ancestors of a specific person.anternetThe means by which ants communicate with each other, analogous to the TCP/IP algorithm that the internet uses to control the flow of data.anteroomA room before, or forming an entrance to, another; a waiting room.antetypeAn archetype or prototype; an example or precursor that guides future developments or versions.antevert(medicine) To displace by anteversion, or make anteverted antheliaplural of anthelion anthelid(entomology) Any of the moths in the family Anthelidae.anthelix(anatomy) Alternative spelling of antihelix.anthemiaplural of anthemion anthemic(music) Suggestive of an anthem; rousing.anthemiscamomile, in genus Anthemis.anthemol(organic chemistry) A monoterpene alcohol, [4-(propan-2-yl)cyclohexa-1,3-dien-1-yl]methanol, found in the oil of camomile as esters of tiglic and angelic acids antheralRelating to an anther.anthered(chiefly in combination) Having (a specified type of) anthers anthesesplural of anthesis anthesis(botany) The event of a flower opening.anthicid(entomology) Any of the beetles in the family Anthicidae.anthillsplural of anthill anthozoaplural of anthozoan anthreptA kind of inceptisol modified by human habitation and farming.anthrome(ecology) An anthropogenic biome.anthrone(organic chemistry) A tricyclic aromatic ketone, used in a popular cellulose assay and in the colorimetric determination of carbohydrates; any derivative of this compound anthrose(organic chemistry) The sugar amide N-[(2R,3S,4S,5R)-4,6-dihydroxy-5-methoxy-2-methyloxan-3-yl]-3-hydroxy-3-methylbutanamide anthuridAny isopod of the family Anthuridae antiacneServing to counteract acne.antiagerAn anti-aging cosmetic.antiarch(zoology) Any of a group of extinct placoderms of the order Antiarchi antiarinEither of two cardiac glycoside poisons produced by the upas tree (Antiaris toxicaria).antiarmsOpposing arms (weapons).antiarmyOpposing an army or armies.antiatom(particle physics) Any atom composed of antiparticles; an antimatter atom.antibankOpposing banks (financial institutions).antibearOpposing or countering bears (the animal).antibiasOpposing or countering bias.antibikeOpposing the use of bicycles.antibirdCountering birds.antiblocOpposing a bloc.antiblue(not comparable, particle physics) Describing one of the three possible colours of an antiquark, corresponding to blue in a quark.antibody(immunology) A protein produced by B-lymphocytes that binds to a specific antigen.antibombOpposing the use of the atomic bomb.antibookOpposing or disliking books.antiboomCountering an economic boom.antibosshostile to the authority of bosses antichav(UK) Opposed to chavs or chav culture.antichipAlternative spelling of anti-chip.anticideA substance that kills ants.anticityOpposing a city.anticize(rare, intransitive) To perform antics.antickedsimple past and past participle of antic anticker(archaic) One who performs antics; a comic performer.anticklyObsolete form of anticly.anticlogResistant to clogging.anticlotCountering clotting of the blood.anticoalOpposed to the burning of coal for energy anticocaOpposing the growing of coca, used to produce the drug cocaine.anticoldActing against or serving to prevent colds (viral illnesses).anticoreAlternative form of anticor.anticoupOpposing a coup.anticous(botany) Facing toward the axis of the flower anticrab(rare) Active against pubic lice.anticropActing against crops.anticult(religion) Opposed to cults.anticureAlternative spelling of anti-cure.antidark(physics) Describing a form of bright soliton antidebtCountering or opposed to debt.antideer(rare) Opposing deer.antidietOpposing dieting.antidoteA remedy to counteract the effects of poison.antidown(physics) Being or relating to an anti-down quark.antidragThat counteracts drag (resistance to movement)antidrop(physiology) Preventing or counteracting a drop in body temperature.antidrugAgainst drugs; advocating against drug use.antiduck(immunology, of an antibody) Reacting with the immunoglobins found in ducks.antidune(geomorphology) A bedform found in fluvial environments, opposing the direction of flow.antidustResistant to dust.antidyon(physics) The antiparticle of the dyon.antientsplural of antient antiepic(literature) A literary work challenging the conventions of the epic.antiface(computing) In facial recognition systems, a face having opposite properties to a given face.antifadeThat counteracts fading.antifakeOpposing or countering fakes; against fraud.antifameOpposing fame.antifarmOpposing farms.antifearCountering fear.antifeltPreventing felting.antifilmOpposing films (audiovisual productions).antifireOpposing or countering fire.antifishOpposed to, or countering, fish.antiflag(mathematics) A nonincident point-hyperplane pair in a projective space.antifleaCountering fleas.antiflow(psychology) A mental state of boredom and lack of challenge, associated with performing activities one does not want to do.antifoamAny chemical agent that inhibits the formation of foam.antifolkAlternative form of anti-folk.antifoodOpposing food.antiform(art) A form that defies the usual conventions of artistic forms.antifoulTo apply antifouling paint to (a boat)antifowl(immunology) Synonym of antichicken.antifrayPreventing fraying of material.antigameA game which cannot be played in the conventional sense.antigang(law enforcement) Intended to combat or reduce the activity of criminal gangs antigene(genetics) An oligonucleotide that attaches to a specific gene and suppresses its action.antigensplural of antigen antigeny(biology, obsolete) Sexual dimorphism, especially in lepidopterans.antigermCountering germs.antigirlOpposing girls.antigoat(immunology, of an antibody) Reacting with the immunoglobins found in goats.antigold(finance, historical) Opposing the use of gold as a medium of exchange.antigolfOpposing the sport of golf.antigout(pharmacology) Countering gout.antigramEither of a pair of anagrams with opposite meanings.antigrav(science fiction, uncountable) Antigravity.antiguruHostile to gurus, or to a specific guru.antihaloPreventing halation.antihateOpposing or countering hate.antihero(literature, roleplaying games) A protagonist who proceeds in an unheroic manner, such as by criminal means, via cowardly actions, or for mercenary goals.antihole(graph theory) Clipping of graph antihole.antihuff(US, obsolete) A substance of uncertain composition once used to adulterate cheese to prevent it from swelling.antihunt(engineering) Preventing hunting, or fluctuating around a central value without stabilizing.antiitch(pharmacology, dermatology) Preventing or countering itching.antijoin(algebra, databases) A type of join, denoted by ▷, such that R▷S yields only those tuples in R for which S has no corresponding tuple of the same value.antijokeA sentence or story that subverts the expectation of a joke, often by being deliberately unfunny or surreal.antijunkOpposing junk mail.antijuryOpposing a jury or juries.antikaon(particle physics) The antiparticle of a kaon.antikickThat reduces kicking or recoil.antiking(politics) One who declares himself king in opposition to a reigning monarch, especially in an electoral monarchy.antikink(mathematics) A negative 1-soliton solution to the Sine–Gordon equation antileakPreventing leaks.antileft(politics) Opposing the political left.antilife(US, politics, derogatory) pro-choice antilipoA text in which all words share a common character; the inverse of a lipogram.antilockAlternative spelling of anti-lock.antilogy(rhetoric) A contradiction in related terms or ideas. Usually an inconsistency in syllogisms, of a person or group supposedly of one set of ideals.antiloveOpposing love.antilustOpposing or inhibiting lust.antimaleAverse to, or acting against, males.antimaskOpposing masks.antimeatOpposing the use of meat as a foodstuff; stridently vegetarian or vegan.antimeme(memetics, science fiction) A meme deployed to nullify or protect against another meme.antimensAlternative form of antimins.antimere(biology) One of the two halves of bilaterally symmetrical animals; one of any opposite symmetrical or homotypic parts in animals and plants.antimilkOpposing milk.antimine(military) Countering or opposing mines (explosive devices).antimins(Christianity) A rectangular piece of linen or silk, usually decorated with religious emblems and inscriptions, and containing a small relic of a martyr.antimode(mathematics) A local minimum on a graph antimoldAlternative form of antimould.antimonyThe alloy stibnite.antimoonThe hypothetical analog of the Moon, revolving around the antiearth.antimuon(particle physics) A positively charged particle, the antiparticle corresponding to a muon.antimyth(sociology) A belief or system that opposes a myth or myths.antinavyOpposing a navy or navies.antinode(physics) A region of maximum amplitude situated between adjacent nodes of a vibrating body, such as a string.antinome(archaic, rare) Synonym of antinomy.antinomy(by extension) Any contradiction or paradox.antinukeOpposed to nuclear weapons.antipainPreventing or counteracting pain; analgesic.antiparkOpposing (the construction of) a park.antipest(public health, pharmacology) Serving to counter or eliminate pests.antiphonA devotional chant; a piece of music sung responsively.antipickDesigned to prevent lock picking.antipill(not comparable) Preventing or countering the formation of pills on fabric.antipion(particle physics) The antiparticle of a pion.antiplay(dramaturgy) A play (dramatical production) that deliberately avoids the typical conventions of the play, such as a coherent plot and resolution.antipodeSomething directly opposite or diametrically opposed.antipoem(poetry) A work of antipoetry.antipoet(poetry) A writer of antipoetry.antipole(geography) The opposite pole.antipolo(archaic) The breadfruit tree.antipoolSynonym of antipooling.antipoorOpposing or working against the poor.antipope(Christianity) A person who claims or claimed to be the pope, usually as the result of a disputed election or deposition, but is not considered by the Roman Catholic Church to be the real pope.antiporkOpposing the eating of pork.antiporn(informal) antipornography antiportTo simultaneously transport different molecules or ions through a cell membrane in opposite directions.antipous(rare) singular of antipodes; synonym of antipode.antipunkOpposing punk music or subculture.antipyicantisuppurative antiquedsimple past and past participle of antique antiquerA person who finishes furniture or objects so they have the appearance of an antique, either for decoration or to perpetrate a fraud.antiquesplural of antique antiquey(informal) Resembling or characteristic of antiques.antirailOpposed to rail transport.antirapeOpposed to rape antiraveOpposing raves (dance parties).antirealOpposing or countering reality.antirent(US, historical) Opposing the collection of outstanding rents in upstate New York during the early 19th century after the death of Stephen Van Rensselaer III.antirichOpposing or working against the rich.antiriotServing to counteract rioting.antirise(physiology) Preventing or counteracting a rise in body temperature.antiroadOpposing the construction of a road.antirock(music) Opposed to rock music antiroomObsolete form of anteroom.antirustAlternative spelling of anti-rust.antisaltOpposing salt.antiscabOpposing strikebreakers.antiscamActing against scams.antiself(immunology, of an antibody) Acting against the organism in which it occurs.antiseraplural of antiserum antiship(military) Designed to attack a naval ship.antisineSynonym of arcsine.antisink(motor vehicles) Aiding suspension by preventing the chassis of the vehicle from sinking.antisite(chemistry) A site within a chemical compound that is occupied by an atom of a different element than would usually be found there.antiskidDesigned to increase friction, and thereby reduce the possibility of skid. (of a surface)antislipPreventing slipping.antismogThat reduce the production of pollutants that cause smog.antismut(informal) Opposed to obscenity or pornography.antisnagPreventing an item from snagging on something else.antisnapDesigned so as not to be broken by snapping.antisnobOpposing snobbery.antisoilPreventing soiling.antispam(Internet) Countering spam (unwanted electronic mail).antispinPreventing spin (of a component).antistabProtecting against stabbing attacks.antistar(astrophysics) A conjectured type of star formed from antimatter.antistatAny antistatic compound.antisuit(law) Being or relating to an injunction that prevents an opposing party from commencing or continuing a proceeding in another jurisdiction or forum.antiswayDesigned to stabilize the left and right suspension systems of a road vehicle so as reduce roll or sway when turning corners.antitailA spike projecting from a comet's coma which seems to extend towards the Sun.antitank(military) Of weapons or tactics, designed for thwarting or (especially) attacking tanks or other armored fighting vehicles.antithet(archaic) An antithetical or contrasted statement.antitickWorking against ticks (the arachnids).antitiltPreventing tilting.antitime(physics) A hypothetical construct that resembles time but somehow opposes or counteracts it.antitollOpposing the imposition of a toll.antitoneSynonym of antimonotone.antitypeSomething that is symbolized or represented by a type, such as Christ by the Paschal Lamb; the fulfillment of a type.antivaxxAlternative form of anti-vax.antiviceOpposing or countering vice (sinful behaviour).antiwartActing against warts.antiwaspCountering wasps.antiwearPreventing mechanical wear.antiweedOpposing or countering weeds (unwanted plants).antiwolfOpposing wolves.antiworkOpposing work.antiwormPreventing or countering worms.antizyme(biochemistry) Any enzyme that inhibits the action of another antleredHaving antlers.antlionsplural of antlion antofine(medicine) A phenanthroindolizidine alkaloid that has some anticancer activity antoikoiAlternative spelling of antœci.antojitoAny of various types of snack or appetizer in Mexican cuisine, such as a torta or pambazo.antonymsplural of antonym antonymy(semantics) The semantic relation between antonyms; the quality of being antonymous.antozone(inorganic chemistry, archaic) hydrogen peroxide antpipitAny of the genus Corythopis of birds in the Tyrannidae family.antpittaAny of the small, insect-eating passerine birds in family Grallariidae, of subtropical and tropical Central and South America.antproofResistant to ants.antrorse(biology) Curved or pointed forward or upward.antsiestsuperlative form of antsy: most antsy antumbra(rare) The region from which an occulting body appears entirely contained within the disc of the light source.antvireoAny of eight species of birds in the genus Dysithamnus.antwacky(Liverpool) old-fashioned or out of date anuclear(cytology) Lacking a nucleus anuresis(medicine) The inability to urinate; the retention of urine in the bladder.anuretic(medicine) Of, pertaining to or characterised by anuresis.anuslessWithout an anus.anuslikeResembling the anus.anusvaraA diacritic used in Indic scripts as a nasal consonant.anxietie(archaic) Alternative form of anxiety.anyoliteA metamorphic rock composed of intergrown green zoisite, black tschermakite, and ruby.anyplace(informal, chiefly US) At a non-specific place; anywhere.anyroadsSynonym of anyroad.anythingAny object, act, state, event, or fact whatsoever; a thing of any kind; something or other.anyuiite(mineralogy) A tetragonal-ditetragonal dipyramidal mineral containing antimony, gold, and lead.anywhereIn or at any location.aoristic(grammar) Of, or relating to the aorist aspect.aortitis(pathology) Inflammation of the aorta.apachetaAlternative form of apachita.apachitaA stone cairn in the Andes.apachite(mineralogy) A monoclinic blue mineral containing copper, hydrogen, oxygen, and silicon.apadanasplural of apadana apagogic(rhetoric) Proving indirectly, by showing the impossibility or absurdity of the contrary.apanagesplural of apanage aparejosplural of aparejo apastron(astronomy) The point of greatest separation between a celestial object and the star which it orbits.apatheia(philosophy) A state of mind in Stoic philosophy in which one is free from emotional disturbance; the freedom from all passions.apatheteAn apathetic person; one given to apathy.apathistOne who has no feeling towards anything, or more specifically religion.apathize(ambitransitive) To make or become apathetic or insensible.apatitesplural of apatite apatitic(geology) Relating to, containing, or having the structure of apatite apelloidAny capuchin monkey of the species Cebus apella or of the new genus Sapajus.apellous(anatomy) Not covered by skin. Said of a circumcised penis, which has had its prepuce (foreskin) removed.aperient(medicine) Having a gentle laxative effect.aperitifAlternative form of apéritif.apertion(archaic) The act of opening.apertive(medicine) Causing the body to open; dissolving blockages or having a purgative or diuretic effect.aperturaThe dehiscence of anthers.apertureA small or narrow opening, gap, slit, or hole.apesault(slang, ethnic slur, derogatory, offensive) An assault perpetrated by a black person.apewomanA female apeman.apextrin(biochemistry) An extracellular protein associated with larval ectoderm evolution in some sea urchins aphakial(ophthalmology, dated) Pertaining to or exhibiting aphakia; aphakic.aphallia(medicine) A congenital condition in which the phallus is absent.aphallicNot having a phallus (penis).aphaniidAny pupfish of the genus Aphanius aphanite(geology, petrology) Certain dark igneous rocks having grain so fine that the individual crystals cannot be seen with the naked eye.aphantic(geology) Of a rock sample: compact, crystalline and too fine-grained in texture for its constituents to be identifiable.aphasiacAlternative form of aphasic.aphasicsplural of aphasic aphasmidLacking phasmids aphelial(astronomy) Relating to the aphelion.aphelian(astronomy) Relating to aphelion aphelion(astronomy, also figuratively) The point in the elliptical orbit of a comet, planet, or other astronomical object, where it is farthest from the Sun.aphelium(obsolete) Synonym of aphelion.aphetismThe aphetized form of a word, i.e. a word which has dropped its initial vowel or syllable, such as squire or vanguard.aphetize(transitive, linguistics) To shorten by aphesis.aphicide(agriculture) Any pesticide intended to kill aphids aphidiid(zoology) Any parasitic wasp in the former family Aphidiidae, now considered to be part of the Braconidae.aphidineAny of the subfamily Aphidinae of aphids.aphidoidAny aphid of the superfamily Aphidoidea.aphlebia(botany) An imperfect or irregular leaf ending (commonly found on ferns)aphodiid(zoology) Any beetle of the subfamily Aphodiinae (family Scarabaeidae).aphoniasplural of aphonia aphonousWithout a voice; voiceless; aphonic.aphorise(transitive) To create an aphorism from.aphorismA concise expression of a principle in an area of knowledge; an axiom, a precept.aphoristA person who creates or recites aphorisms.aphorizeAlternative spelling of aphorise.aphrasia(pathology) Condition of being unable to speak.aphrenia(medicine) stoppage of thought; inability to think aphroniaThe lack of practical judgment.aphthoid(pathology) Of, or resembling aphtha (thrush).aphthong(phonology, archaic) A letter or combination of letters employed in spelling a word but not pronounced; a silent letter or polygraph aphthous(pathology) Of, or relating to aphtha.aphyonid(zoology) Any fish in the family Aphyonidae.apiarianPertaining to bees or beekeeping.apiariesplural of apiary apicallyIn an apical manner or direction; towards an apex.apicidinA fungal metabolite that is an inhibitor of histone deacetylase apicitis(pathology) Inflammation of the apex of an anatomical part.apicularSituated at, or near, the apex; apical.apiculum(botany) A short, slender, flexible point apiculus(mycology) The part of a spore which attaches to the sterigmata at the end of a basidium.apiforol(organic chemistry) The flavanol (2S)-2-(4-hydroxyphenyl)-3,4-dihydro-2H-chromene-4,5,7-triol apigenin(organic chemistry) A flavone, found as a glycoside in many plants, that reverses the adverse effects of cyclosporine apikorusAlternative form of apikoros.apilimodThe pharmaceutical drug N-[(E)-(3-methylphenyl)methylideneamino]-6-morpholin-4-yl-2-(2-pyridin-2-ylethoxy)pyrimidin-4-amine apimania(rare) An excessive interest in bees.apiologyThe scientific study of bees and honey-making.apiosideAny glycoside of apiin apiphily(botany) pollination by bees apiphobeAn apiphobic person.apitoxin(toxicology) The venom found in a honey bee's sting.apixaban(pharmacology) An anticoagulant drug for the treatment of venous thromboembolic events.aplastic(pathology) Relating to aplasia.aplowite(mineralogy) A monoclinic-prismatic pink mineral containing cobalt, hydrogen, manganese, nickel, oxygen, and sulfur.aplustre(historical, nautical) An ornamental appendage of wood at the stern of a Roman ship, usually spreading like a fan and curved like a bird's feather.aplysiid(zoology) Any sea hare in the family Aplysiidae.apneusis(pathology) An abnormal pattern of breathing characterized by deep, gasping inspiration with a pause at full inspiration followed by a brief, insufficient release.apoapsis(astronomy) The point of a body's elliptical orbit about the system's centre of mass where the distance between the body and the centre of mass is at its maximum.apoareon(planetology) Alternative form of apoareion.apocarpyThe quality of being apocarpous.apocopic(linguistics) Of or pertaining to apocope; lacking a final sound or syllable.apocrine(anatomy, biology, histology) Of or pertaining to an apocrine gland or to its mode of secretion, which involves the budding of portions of the secreting cells.apocynin(organic chemistry) A derivative of acetophenone that occurs in many plants; it has some potential medicinal properties apocyticRelating to apocytes; multinucleate and unicellular.apodemal(anatomy) Synonym of apodemic.apodemic(ecology, rare) Not endemic; found both inside a particular region and outside it (regardless of origin).apodisedAlternative form of apodized.apodixis(rhetoric) Full demonstration or showing; absolute and incontrovertible proof.apodizedsimple past and past participle of apodize apodizer(physics) Any of several devices that permit apodization of an optical or electrical signal apodosesplural of apodosis apodosis(logic, grammar) The consequential clause in a conditional sentence.apodotic(grammar) Of or pertaining to apodosis.apofocus(astronomy) apocenter, apobaryon apogaeicAlternative form of apogeic.apogamic(botany) Of or relating to apogamy.apogonidAny of the family Apogonidae of large-headed, marine, percoid fishes with oblong and compressed bodies.apograph(textual criticism) A copy or transcript of a manuscript (called the antigraph).apoideanRelating to bees of the superfamily Apoidea.apokroneApoapsis around the planet Saturn.apolarlyIn an apolar manner apologal(literature) Relating to an apologue.apologeeOne that receives an apology apologer(obsolete) A teller of apologues.apologiaA written defense of a position or belief.apologieArchaic spelling of apology.apologueA short story with a moral, often involving talking animals or objects; a fable.apolunar(astronomy) Of or relating to the apolune.apolunesplural of apolune apolysedModified by apolysis apolysis(biology) The separation of the cuticula from the epidermis in arthropods and related groups.apolyticRelating to apolysis apomixis(botany) Plant reproduction without fertilization.apomorph(phylogenetics) An organism existing in an evolutionary state that represents a morphological change as compared to a previous state.apomucin(biochemistry) The apoprotein of a mucin apomyxis(botany) Alternative spelling of apomixis.apophanyAlternative form of apophenia.apophony(phonetics) Modification of an internal vowel sound in a word or linguistic root, especially so as to establish a lexical distinction.apophyge(architecture) A curvature found on the top or bottom of certain columns.apophyte(ecology, botany) Any native plant growing in disturbed land, such as in an abandoned field apoplasm(cytology) The fluid in an apoplast apoplast(botany) The space outside of a plant's plasma membrane through which water and soluble nutrients are transported across a tissue or organ apoplexy(medicine, dated) Unconsciousness or incapacity resulting from a cerebral hemorrhage or stroke.apoptose(biology, cytology, ambitransitive) To cause the cell to undergo apoptosis, a process of programmed cell death.apopylarRelating to an apopyle aporcineMisspelling of apocrine.aporesisKnowing perplexity, knowing the extent of one's wisdom.aporeticTending to doubt.aporphinAlternative form of aporphine.apospory(biology) The ability of a plant's sporophytes to form a plant that looks like a gametophyte but has the ploidy level of the sporophyte.apostacyArchaic form of apostasy.apostasyThe renunciation of a belief or set of beliefs.apostataObsolete form of apostate.apostateGuilty of apostasy.aposteme(medicine, obsolete) An abscess; a pustulent swelling.aposthia(medicine, urology) The congenital absence of a foreskin.aposthicOf or pertaining to aposthia.apostilb(physics) a unit of luminance, being the luminance of a perfectly diffusing surface emitting light at the rate of ¹⁄_π candela per square metre. Also known as a blondel.apostlesplural of apostle apostomeAny ciliate of the order Apostomatida apostumeObsolete form of aposteme.apothegmA short, witty, instructive saying; an aphorism or maxim.apothekeA Greek storeroom or warehouse.apotypic(taxonomy) Relating to an apotype appalingMisspelling of appalling.appalledShocked, horrified by something unpleasant.appallerOne who appalls.appalmed(heraldry, uncommon) Synonym of appaumé.appanageAlternative form of apanage.apparantMisspelling of apparent.apparate(fantasy, intransitive) To appear magically; to teleport to or from a place.apparati(hypercorrect) plural of apparatus apparellObsolete form of apparel.apparelsthird-person singular simple present indicative of apparel apparentCapable of being seen, or easily seen; open to view; visible to the eye; within sight or view.appealedsimple past and past participle of appeal appealerSomeone who makes an appeal; an appellant.appearedsimple past and past participle of appear appearer(rare) Someone who or something which appears.appearesthird-person singular simple present indicative of appeare appeasedsimple past and past participle of appease appeasee(very rare) One who is appeased.appeaserA person who appeases.appeasesthird-person singular simple present indicative of appease appellee(US, law) A respondent.appenageAlternative form of apanage.appendedsimple past and past participle of append appender(computing) A software component that appends data to a computer file.appendixA text added to the end of a book or an article, containing additional information.apperill(obsolete) Alternative form of apperil (“peril”).appestatThe area of the brain (possibly in the hypothalamus) supposed to control appetite and regulate food intake appetent(archaic) Eagerly desirous; greedy.appetise(rare) To whet the appetite.appetiteA desire to eat food or consume drinks.appetize(rare) To whet the appetite.appisodeAn episode of a show in the form of an interactive software application.applagin(biochemistry) A particular disintegrin.applaudsthird-person singular simple present indicative of applaud applauseThe act of applauding; approbation and praise publicly expressed by the clapping of hands, stamping or tapping of the feet, acclamation, huzzas, or other means; marked commendation.applauzeObsolete spelling of applause.appleadeA sweetened apple drink.appleboxAlternative form of apple box.appleishAlternative form of applish.appliersplural of applier applique(art) A decorative design made by cutting pieces of material and applying them to the surface of another for decoration.applyingpresent participle and gerund of apply appointsthird-person singular simple present indicative of appoint apporter(obsolete) A bringer in; an importer.apposingpresent participle and gerund of appose appositeStrikingly appropriate or relevant; well suited to the circumstance or in relation to something.appraise(transitive) To determine the value or worth of (something), particularly as a person appointed for this purpose.appreesh(informal, transitive) To appreciate; to be thankful for.apprisalThe act of apprising, of making aware, of informing.apprisedsimple past and past participle of apprise appriser(Scots law) One who carries out an apprising.apprisesthird-person singular simple present indicative of apprise apprizedsimple past and past participle of apprize approach(intransitive) To come or go near, in place or time; to move toward; to advance nearer; to draw nigh.appropre(obsolete, transitive) To appropriate.appropry(obsolete, rare, usually in the past participle) To appropriate (for); to set apart.approuedObsolete spelling of approved.approvalAn expression of favorable acceptance and encouragement; a compliment that also condones.approvedHaving received approval.approvee(rare) One who is requesting approval from an approver; one who receives approval.approverOne who approves or gives approval.approvesthird-person singular simple present indicative of approve appstoreAlternative form of app store.apractic(neurology) Relating to apraxia apricate(intransitive, rare) To bask in the sun.apricity(obsolete) The light or warmth of the Sun.apricockObsolete form of apricot.apricotsplural of apricot apricotyResembling apricots, apricotlike.aprocarbSynonym of propoxur.aproneer(obsolete, derogatory) A shopkeeper.apronfulas much as an apron will hold aproningpresent participle and gerund of apron apronnedAlternative form of aproned.aproptinMisspelling of aprotinin.aprosody(speech pathology) The lack of variations in speech, such as speed, tone, and emphasis.apsidole(architecture) A minor apse at the end of a side aisle in a church.apstatinAlternative form of apastatin.aptagram(rare) An anagram whose meaning is relevant to that of the original text that was anagrammed.aptatopeThe binding-site of an aptamer aptazymeAn aptamer fused with a ribozyme apterateA wingless (apterous) form of an aphid apterium(ornithology) An area of bare (featherless) skin on a bird.apterous(zoology) Without wings.apterylaAny of the regions of a bird's skin, between the pterylae, which are free of contour feathers, and where filoplumes and down may grow.aptitudeA natural ability to acquire knowledge or skill.aptonymyThe state of being an aptonym.aptronymA name that is aptly suited to its owner.aptyalia(medicine) Reduced secretion of saliva.aptychus(paleontology) A hard calcareous plate forming part of the body of an ammonite.apuanite(mineralogy) A tetragonal-ditetragonal dipyramidal black mineral containing antimony, iron, oxygen, and sulfur.apulosis(obsolete, medicine) the formation of scar tissue as part of the healing process apulotic(obsolete, medicine) promoting cicatrization, apulosis apurinic(biochemistry) From which purines have been removed.apurpose(dialect) on purpose; deliberately apyretic(medicine) Without fever, free from fever.apyrexia(medicine) The absence or an intermission during a bout of fever.apyrogenAny apyrogenic material aquabicsSynonym of water aerobics.aquabikeSynonym of jet ski.aquacadeAn entertainment consisting of swimmers and divers performing to music aquacise(informal) To practice such exercise.aquaductMisspelling of aqueduct.aquaeousAlternative spelling of aqueous.aquafaba(cooking, neologism) The liquid left over from boiling chickpeas or similar beans, or from a can of chickpeas.aquafact(geology) A boulder worn by running water that is too large to be rolled as a pebble, worn smooth on the upstream or seaward side and exposed top and with a sharp ridge on the downstream or landward side.aquafarm(agriculture) A facility where aquaculture is carried out.aquafeed(agriculture) Any feed for aquatic organisms as part of aquaculture.aqualfic(soil science) Relating to aqualfs.aqualite(mineralogy) A pink trigonal mineral containing calcium, chlorine, hydrogen, potassium, sodium, oxygen, silicon, strontium and zirconium.aquanautAn underwater explorer.aquarialOf or relating to an aquarium.aquarianOf or relating to an aquarium.aquaristA person who maintains an aquarium.aquariumA tank, often made of glass, for keeping live fish or other aquatic animals.aquashowA spectacle consisting of underwater dance and gymnastics.aquastatA device that automatically responds to changes in temperature of a liquid, typically water in a domestic hot water heating system, by activating a heating or cooling system to maintain the temperature of the liquid at a desired setting.aquastorA being created and sustained by the power of the imagination and the concentration of thought.aquathonAlternative form of aquathlon.aquatickObsolete spelling of aquatic.aquaticsplural of aquatic aquatile(obsolete) Inhabiting the water.aquatintA form of etching with acid on a plate partially covered with varnish that produces a print somewhat resembling a watercolour.aquation(chemistry) The replacement of a ligand by water in a complex aquatoneAn offset printing method using a gelatin-coated zinc plate to print type, line illustrations, and fine-screen halftones.aquavinaAlternative form of aguavina (“kind of fish”).aqueductAn artificial channel that is constructed to convey water from one location to another.aquiesceMisspelling of acquiesce.aquifersplural of aquifer aquiformResembling water; watery, liquid aquifuge(geology) An aquiclude.aquilineOf, pertaining to, or characteristic of eagles; resembling that of an eagle.aquilino(historical) An old Italian coin bearing the image of an eagle.aquitard(geology) A semipermeable layer along an aquifer.aquittedMisspelling of acquitted.aquollic(soil science) Relating to an aquoll aquosity(rare) The condition of being watery; wateriness arabinan(biochemistry) A polysaccharide that is mostly a polymer of arabinose arabitol(biochemistry) A sugar alcohol derived from the pentose arabinose arabityl(organic chemistry, especially in combination) A univalent radical derived from arabitol arabiyeh(historical) An Arabic native cart or carriage.aracangaThe scarlet macaw.aracanid(zoology) Any member of the family Aracanidae of fish similar to boxfishes.aracarisplural of aracari araceous(botany) Of or relating to a family of plants, Araceae, of which the genus Arum is the type.arachnidAny of the eight-legged creatures, including spiders, mites, and scorpions, of the class Arachnida.aracouneObsolete spelling of raccoon.aracytin(pharmacology) cytarabine araguatoA South American howler monkey, the ursine howler (Alouatta arctoidea).arahuanaAlternative form of arowana (“type of fish”).arakiite(mineralogy) A monoclinic-domatic mineral containing aluminum, arsenic, hydrogen, iron, magnesium, manganese, oxygen, and zinc.aranciniplural of arancino arancinoA baked rice ball, filled with cheese or other sauce, originally from Sicily.araneidsplural of araneid araneoid(zoology) Any spider of the superfamily Araneoidea.araneoseResembling a spider's web; arachnoid.araneousExtremely thin and delicate, like a cobweb.arangoesplural of arango aranotin(pharmacology) An antiviral drug.aranzadaA Sardinian dessert made from candied orange peel in honey and toasted almonds.arapaimaAny large, bonytongue fish in the genus Arapaima, native to the Amazon and Essequibo basins of South America.arapongaSynonym of bare-throated bellbird (Procnias nudicollis)arapungaAlternative form of araponga.araraunaA blue-and-yellow macaw (Ara ararauna).arbaciid(zoology) Any sea urchin in the family Arbaciidae.arbalestA steel crossbow.arbalistAlternative form of arbalest.arbelestAlternative form of arbalest.arbitersplural of arbiter arbitralRelating to arbitration.arbitrix(rare, now chiefly humorous) A female arbiter, an arbitress.arbolocoAny of various trees of the genus Montanoa.arborary(dated) Of or pertaining to trees; arboreal.arborealOf, relating to, or resembling a tree.arboreanArchaic form of arboreal.arboreol(organic chemistry) The epoxylignane derivative (7β,7'α,8α,8'α)-3,4:3',4'-bis(methylenedioxy)-7,9':7',9-diepoxylignane-7,8-diol arboretaplural of arboretum arborise(intransitive) To develop a tree-like appearance.arboristA person in the practice of arboriculture; a tree surgeon.arboriteA heat-resistant laminate material used to veneer countertops.arborizeAlternative spelling of arborise.arboroidSynonym of arborescent (“tree-like”).arborousFormed by trees; filled or covered with trees.arborwayAn avenue (lined with trees).arbouredAlternative spelling of arbored arbuscle(botany) A plant midway in height between a shrub and a tree; a dwarf tree.arbutean(obsolete) Made from arbute, the wood of the strawberry tree.arbutoidCharacteristic of the Arbutus genus; applied to a kind of mycorrhiza where the fungal hyphae form sheaths around the root tips.arcadianPertaining to an arcade.arcadiasplural of arcadia arcading(countable, architecture) An arrangement of arcades.arcanelyIn an arcane way.arcanistA person who studies arcana or religious mysteries.arcanite(mineralogy) Potassium sulfate.arcanity(uncountable) The quality of being arcane.arcature(architecture) A small arched passageway.archaeal(microbiology) Relating to the archaea.archaean(biology) Any organism of the domain Archaea.archaeic(hypercorrect) Obsolete spelling of archaic.archaeid(zoology) Any member of the family Archaeidae of spiders, of southern Africa, Madagascar, and Australia.archaeol(organic chemistry) Di-O-phytanylglycerol, a double ether of sn-1-glycerol where positions 2 and 3 are bound to phytanyl residues.archaeonA prokaryotic organism; a member of the domain Archaea archaeusAlternative form of archeus.archaickObsolete spelling of archaic.archaicy(very rare, nonstandard) The condition of being archaic.archaiseNon-Oxford British English standard spelling of archaize.archaismThe adoption or imitation of archaic words or style.archaistA person who studies archaic things; an antiquary archaize(transitive) To give an archaic quality or character to; make archaic, to suggest the past.archaralMisspelling of archaeal.archbish(colloquial) An archbishop.archdeanA member of a discontinued Catholic ecclesiastical office, higher in rank than a dean.archduke(historical) The son or male-line grandson of an emperor of the Austro-Hungarian Empire.archfool(archaic) An extremely foolish person.archical(obsolete) chief; primary; primordial archivalOf or pertaining to an archive or archiving.archivedsimple past and past participle of archive archiverOne who, or that which, archives.archivesplural of archive archking(rare) A chief king.archlessLacking arches.archlikeHaving the form of an arch archluteA fretted and double-necked stringed musical instrument with a large body, double courses in the bass, and two sets of tuning pegs.archmage(fantasy) A very powerful mage.archmoldAlternative form of archmould.archnessThe state of being arch.archwaysplural of archway archwifeA big, masculine wife; a dominating woman; virago.archwire(dentistry) An orthodontic wire conforming to the alveolar or dental arch.archwiseIn the shape of an arch.arciformHaving the form of a bow (weapon)arclightAlternative form of arc light.arcology(urban studies, uncountable) Urban development theory proposed by Paolo Soleri involving three-dimensional building methods and efficient use of space and resources.arcticid(zoology) Any clam in the family Arcticidae, all but one species of which are extinct.arctiineAny erebid moth of the subfamily Arctiinae.arcturid(zoology) Any of the marine isopods in the family Arcturidae.arcuatedAlternative form of arcuate.areawideExtending over the entire area areawiseIn terms of area.arecaineSynonym of arecaidine.arenafulas much as an arena would hold.arenicinAny of a particular group of antimicrobial peptides arenitic(geology) Of or related to arenite arenizedsimple past and past participle of arenize arenosol(soil science) psamment areolaesMisspelling of areolae and areolas.areolateHaving areolas areology(astronomy, geology) The scientific observation and study of the planet Mars's geology; geology of Mars.areopagy(obsolete) secret tribunal, conclave aretaics(ethics) The ethical theory which excludes all relations between virtue and happiness; the science of virtue; contrasted with eudaemonics.arethusaA bog orchid, Arethusa bulbosa, sole species of the genus Arethusa, having a magenta flower; the dragon's mouth.arfaptin(biochemistry) A protein (or associated domain) that interacts with ARF1 argemone(botany) Any of the genus Argemone of flowering plants, the prickly poppies.argenineMisspelling of arginine.argentannickel silver argenticOf, pertaining to or containing silver.argentry(obsolete) Silver material, or silverness in color.argillan(geology) A clay skin, a kind of cutan.argillic(geology, soil science) Of or pertaining to clay or clay minerals.arginase(biochemistry) An enzyme that catalyses the hydrolysis of arginine to form urea and ornithine argineneMisspelling of arginine.arginineAn amino acid found in animal foods that plays an important role in several physiological processes.argonautAny of several species of shelled octopods of the family Argonautidae (of which only the genus Argonauta is not extinct).argonideA binary compound of argon argoniteA mixture of argon and nitrogen used in firefighting argoniumA cation (ArH⁺) formed by protonation of an argon atom argosiesplural of argosy argosomeAn exovesicle in the cell membranes of fruitflies arguableThat can be argued; that can be proven or strongly supported with sound logical deduction, precedent, and evidence.arguablyAs can be supported or proven by sound logical deduction, evidence, and precedent, but without absolute certainty.arguendo(law) Used to set off the facts presented in an argument on a point of law from facts in dispute in the case.argufierOne who argufies.argufiesthird-person singular simple present indicative of argufy argument(countable, also figuratively) A fact or statement used to support a proposition; a reason.argutelyIn an argute manner.argutite(mineralogy) A germanium dioxide mineral.argyrism(pathology) silver poisoning arialikeResembling or characteristic of an aria.aridisol(soil science, US soil taxonomy) A soil of the kind that dominates deserts and xeric shrublands, having a very low concentration of organic matter and little water.aridlandThe land of an arid environment.aridnessThe state or quality of being arid.arietine(zoology, rare) Of, like, or pertaining to rams.ariettasplural of arietta arightlyAright; correctly.arildone(pharmacology) An antiviral drug.arillaryRelating to the aril.arillate(botany) Having arils.arillode(botany) A structure resembling an aril that comes from the ovule as opposed to the stalk.arisingsplural of arising aristate(botany) Having a long bristle at its apex.aristeiaA scene in epic poetry where the hero has his finest moments in battle.arkhaligA long tight-waist jacket worn by the peoples of the Caucasus and Iran, made of various kinds of fabric, such as silk, satin, cloth, cashmere and velvet, traditionally depending on the social status of its owner.arkstorm(meteorology) A very severe rainstorm lasting for many days, fed by an atmospheric river, causing massive flooding.armagnacAlternative letter-case form of Armagnac.armamentA body of forces equipped for war.armarianSynonym of armarius (“medieval monastery librarian”).armariumSynonym of ambry (“cupboard or storage area”).armariusThe librarian in a medieval monastery, who kept, repaired and catalogued its manuscripts and books.armatole(historical) A Greek armed mercenary who enforced Ottoman rule in Greece from the 15th century onward; during the Greek War of Independence (1821–1832), many armatoloi became pro-independence guerrilla fighters opposed to Ottoman rule.armatureA detachment of soldiers; soldiers collectively.armbandsplural of armband armboardA device designed to provide support for a person's arm during surgical practices.armbraceAny of several forms of harness that support an injured arm.armchairA chair with supports for the arms or elbows.armenismA word or other feature originating in the Armenian language that has been borrowed by another language.armenite(mineralogy) An orthorhombic-pyramidal mineral containing aluminum, barium, calcium, hydrogen, oxygen, and silicon.armfloat(swimming) Synonym of armband (“one of a pair of inflatable plastic bands, normally worn on the upper arms, to help the wearer (often a child) float in water and learn to swim”).armgaunt(nonce word, archaic) Of uncertain meaning; perhaps describing gaunt or slender limbs.armguardA protective cover for the arm.armholesplural of armhole armloadsplural of armload armoiresplural of armoire armoniacObsolete form of ammoniac.armonicaA musical instrument made of blown-glass bowls mounted on a spindle turned originally by a foot pedal, and played with wetted fingers, producing an ethereal sound. Technically, it is a crystallophone.armonicoAlternative spelling of armónico.armorersplural of armorer armorial(heraldry) Of, or relating to heraldry, or to heraldic arms.armoriesplural of armory armoringpresent participle and gerund of armor armorist(heraldry) A person skilled in the bearings of coats of arms, and all relating to their emblazonment.armouredsimple past and past participle of armour armourer(British spelling) Alternative spelling of armorer.armozeenA thick plain silk, generally black, used for clerical garments.armozineAlternative form of armozeen.armpieceA piece of armour that protects the arm.armplatePlate armour worn on one's arms.armrestsplural of armrest armstand(diving) A dive from a platform that starts from the hands.armylessWithout an army.armylikeResembling or characteristic of an army.armywearClothing to be worn by the army.armywormThe larva of any of the genera Spodoptera and Mythimna of noctuid moths, which typically feed in large, destructive groups on food crops and grasses.arnicine(organic chemistry) An alkaloid obtained from the arnica plant.arnimite(mineralogy) Synonym of antlerite.aromaticFragrant or spicy.arousalsplural of arousal arousingpresent participle and gerund of arouse arpeggio(music) The notes of a chord played individually instead of simultaneously, usually moving from lowest to highest.arquated(archaic, zoology, botany) shaped like a bow (curve); arched; curved.arquebus(transitive, rare) To shoot with an arquebus.arracachAlternative form of arracacha.arraignsthird-person singular simple present indicative of arraign arrangedsimple past and past participle of arrange arrangerOne who arranges.arrangesthird-person singular simple present indicative of arrange arrantlyIn an arrant manner; utterly, thoroughly, outright.arrasene(archaic) A fabric made of wool or silk used for working the figures in embroidery.arrastraA device formerly used by gold-miners for grinding auriferous quartz, crudely resembling a mortar and pestle, with the crushing element dragged around by horse or mule.arrastreAlternative form of arrastra.arraught(obsolete, poetic) obtained or gotten; seized arrayersplural of arrayer arrayingpresent participle and gerund of array arraylet(programming) Any of the subarrays that make up a larger array-like data structure whose elements do not have to be stored contiguously.arrectedsimple past and past participle of arrect arrectorSynonym of erector.arrestedsimple past and past participle of arrest arresteea person who is under arrest.arresterOne who places another under arrest.arrestin(biochemistry) Any of a group of proteins that regulate signal transduction within cells.arrestorAlternative form of arrester.arrhinia(teratology) Congenital absence of the nose arrhizal(botany) Having no roots.arribada(zoology) A mass nesting of marine turtles.arriccioA layer of plaster laid slightly coarsely to provide a key for the intonaco.arriuallObsolete spelling of arrival.arrivalsplural of arrival arrivantA person who is arriving or has just arrived.arrivingpresent participle and gerund of arrive arrivismAlternative form of arrivisme.arrogantHaving excessive pride in oneself, often with contempt or disrespect for others.arrogate(transitive, uncommon) To appropriate or lay claim to something for oneself without right.arrosion(medicine) The wasting away of a vessel wall under pressure.arrosivegnawing; chewing; corroding arrowilyIn an arrowy manner; like an arrow.arrowingpresent participle and gerund of arrow arsazine(organic chemistry) The six-membered aromatic heterocycle containing four carbon atoms, one nitrogen atom and one arsenic atom arsedine(obsolete) An imitation gold used in gilding.arseface(UK, Ireland, Commonwealth, vulgar, slang, derogatory or offensive) A contemptible person.arsehead(UK, Ireland, Commonwealth, vulgar, derogatory, slang) An idiotic or undesirable person.arsehole(Commonwealth, mildly vulgar) The anus.arsehood(UK, Ireland, Commonwealth) The state or quality of being an arse.arselessAlternative form of assless.arseling(UK dialectal, especially Scotland and East Anglia) Backwards.arseload(slang, vulgar, rare) a large amount.arselong(UK dialectal) Backwards; on one's arse.arsenalsplural of arsenal arsenate(organic chemistry) Any salt or ester of arsenic acid.arsenazo(organic chemistry) Any of a small group of azo dyes, having arsenic acid groups, that are sensitive to calcium, hafnium and similar metals arsenene(inorganic chemistry) An allotrope of arsenic that has a two-dimensional structure similar to graphene arseness(Trinidad and Tobago, vulgar) Annoying foolishness.arsenian(mineralogy) Containing pentavalent arsenic.arsenickObsolete form of arsenic.arsenideAn ion that is an arsenic atom with three extra electrons and charge −3.arsenido(inorganic chemistry) A ligand formed by removing a hydrogen from an arsine arsenine(organic chemistry) The aromatic heterocycle C₅H₅As having the structure of pyridine but with an arsenic atom replacing the nitrogen arsenismarsenic poisoning arsenite(inorganic chemistry) Any oxyanion of trivalent arsenic, especially the AsO₃³⁻ anion (or protonated derivatives); any salt containing this anion, or any ester of arsenious acid arsenium(inorganic chemistry) The radical cation H₂As:⁺ derived from arsine arsenoan(mineralogy) Containing trivalent arsenic.arsenous(chemistry) of, related to, or derived from arsenic, especially in an oxidation state of three; arsenious arsepane(organic chemistry) A saturated seven-membered heterocycle having six carbon atoms and one arsenic atom.arsepine(organic chemistry) An unsaturated seven-membered heterocycle having six carbon atoms, one arsenic atom and three double bonds.arsetane(organic chemistry) A saturated heterocycle containing three carbon atoms and one arsenic atom.arsewash(UK, Ireland, Australia, New Zealand, vulgar, slang) Nonsense.arseways(Ireland, vulgar slang) Badly or wrongly; in the wrong position.arsewipe(uncountable) Toilet paper.arsinane(organic chemistry) A saturated heterocycle that has five carbon atoms and an arsenic atom arsinate(inorganic chemistry) The anion H₂AsO₂⁻, or one of its derivatives formed by substituting the hydrogen with an organic chemical group, or a salt thereof. It has arsenic formally in a +1 oxidation state.arsinide(inorganic chemistry) A chemical compound derived by substituting a metal for a hydrogen atom of arsine.arsinine(organic chemistry) Any of a class of aromatic heterocyclic compounds containing a ring of five carbon atoms and an arsenic atom; especially the simplest one, C₅H₅As.arsinous(chemistry, obsolete) A chemical containing arsenic in oxidation state +3. Now replaced by IUPAC term arsenic(III).arsinoyl(inorganic chemistry) The univalent arsenic radical -AsH₂(=O)arsirane(organic chemistry) A three-membered heterocycle containing two methylene groups and an arsenic atom; the arsenic equivalent of ethylene oxide arsirene(organic chemistry) The unsaturated three-membered heterocycle containing two carbon atoms, one arsenic atom and a double bond.arsocane(organic chemistry) A saturated eight-membered heterocycle having seven carbon atoms and one arsenic atom arsolane(organic chemistry) A saturated heterocycle that has four carbon atoms and an arsenic atom arsoline(organic chemistry) Any of three isomeric monounsaturated heterocycles having a five-membered ring and one arsenic atom C₄H₇As arsonate(inorganic chemistry) The oxyanion HAsO₃²⁻, derivatives, or any salt containing this ion arsonismThe tendency to commit arson.arsonistOne who has committed the act of arson, or illegally setting fire to property.arsonite(dated) An arsonist.arsonium(inorganic chemistry) The univalent AsH₄⁺ cation, derived from arsine.arsonousOf or relating to arson.arsorane(inorganic chemistry) the arsenic hydride AsH₅, λ⁵-arsane artboard(graphical user interface) An on-screen design surface in a drawing application.artefactBritish standard spelling of artifact.arterati(informal, art) People who are considered the elite in the world of art.arteriac(anatomy, dated, possibly nonstandard, rare) Of or pertaining to the arteries; arterial.arterialOf or relating to an artery.arteriesplural of artery artesian(hydrology) Of a water supply, rising to the surface under its own hydrostatic pressure.artformsplural of artform artfullyIn an artful manner.artgoingAttending art exhibitions.arthopodMisspelling of arthropod.arthouseAlternative spelling of art house.arthrous(grammar) Of, pertaining to, or being the use of a term together with a grammatical article.articalsMisspelling of articles, plural of artical.articledsimple past and past participle of article articlesplural of article articuliplural of articulus artifactAn object made or shaped by human hand or labor.artificeA crafty but underhanded deception.artilectAn artificial intellect, a supposed artificial intelligence that may outstrip its human creators in mental capability.artinessThe quality of being arty.artinianAlternative letter-case form of Artinian.artinite(mineralogy) A hydrated magnesium carbonate mineral that forms white silky monoclinic prismatic crystals.artisansplural of artisan artistesplural of artiste artisticHaving or revealing creative skill.artistlyIn an artistic fashion.artistrySignificant artistic skill.artivismThe practice of promoting a political agenda through acts considered to be art, such as the defacing of advertisements.artivistA person who engages in artivism.artizansplural of artizan artmakerOne who produces art; an artist.artotype(phorography, historical or archaic) A kind of autotype.artpaperHeavy-stock paper that is commonly used in books that show reproductions of artwork.artpieceA piece of art; artwork.artsiestsuperlative form of artsy: most artsy artspaceAn art gallery that offers art-related activities and events.artspeak(often derogatory) The specialist vocabulary and language associated with art and artists, especially when seen as complicated or pretentious.artstyleA style of artwork, especially one in a video game.artworksplural of artwork artworldA group or network of people involved in the production, commission, preservation, promotion, criticism, and sale of art.arundoin(organic chemistry) The terpenoid ether (3R,3aR,5aR,5bR,7aR,9S,11aS,13aS,13bR)-9-methoxy-3a,5a,8,8,11a,13a-hexamethyl-3-propan-2-yl-1,2,3,4,5,5b,6,7,7a,9,10,11,13,13b-tetradecahydrocyclopenta[a]chrysene aruspiceAlternative form of haruspex.arvicole(zoology, dated) field mouse (US, Canada), vole aryballoAlternative form of aryballos.arylated(organic chemistry) modified by the addition of one or more aryl groups.aryloxyl(organic chemistry, especially in combination) any univalent radical R-O-, or anion R-O⁻, where R is an aryl group arylzinc(organic chemistry) Any aryl organozinc compound arythmiaAlternative form of arrhythmia.arythmicAlternative spelling of arrhythmic.arzakite(mineralogy) A monoclinic mineral containing bromine, chlorine, mercury, and sulfur.asabiyyaAlternative form of asabiyyah.asbesticRelating to, or resembling, asbestos.asbestos(mineralogy) Any of asbestos-like forms of several minerals, asbestiforms asbestusDated form of asbestos.asbolane(mineralogy) A hexagonal mineral containing calcium, cobalt, hydrogen, manganese, nickel, and oxygen.asboliteA cobaltiferous wad.ascaphid(zoology) Any of the tailed frogs in the family Ascaphidae ascaridsplural of ascarid ascariteA form of silica that has a coating that absorbs carbon dioxide ascendedsimple past and past participle of ascend ascenderA person or thing that ascends.ascetickObsolete spelling of ascetic.asceticsplural of ascetic aschizan(entomology) Of or pertaining to the dipteran section Aschiza.ascidianAny member of the class Ascidiacea (the sea squirts)ascidiid(zoology) Any of the tunicates in the family Ascidiidae ascidium(botany) A pitcher-shaped or flask-shaped organ or appendage of a plant.asclepinA particular steroid glycoside.ascocarp(mycology) The sporocarp of an ascomycete, typically bowl-shaped.ascogeny(mycology) The development of ascospores inside an ascus.ascoidalRelating to or composed of ascoids.asconoid(biology, of a sponge) Having the form of a simple ascon ascorbicOf or pertaining to ascorbic acid or its derivatives.ascorbyl(organic chemistry) A univalent radical derived from ascorbic acid ascribedsimple past and past participle of ascribe ascribesthird-person singular simple present indicative of ascribe ascrotal(zoology) Existing without a scrotum.aseismic(seismology) seismically inactive asellote(zoology) Any isopod crustacean of the suborder Asellota.asemasiaSynonym of asemia.aseptateHaving no septum.asfetidaAlternative spelling of asafoetida.asfotaseA drug used to treat hypophosphatasia.ashcakesplural of ashcake ashfieldA field that is covered in ash.ashiatsuA form of massage in which the practitioner uses their feet to deliver treatment.ashimmerShimmering; covered (with something shimmering).ashinessThe quality of being ashy.ashitori(sumo) a kimarite in which the attacker takes his opponent down by grabbing and lifting his leg with both hands ashlaredBuilt with ashlars.ashleredAlternative form of ashlared.ashplantAn ash sapling.ashrafeeAlternative form of ashrafi.ashramasplural of ashrama ashtangaThe classical system of yoga described in the Yoga Sutras by Patanjali.ashtraysplural of ashtray asialism(pathology) Decrease or absence of salivary secretion; xerostomia.asientosplural of asiento asinderosalt farmer; saltmaker askefise(obsolete) One who blows on ashes to bring them to flame.askinglyIn an asking manner; so as to ask.aslumber(poetic) Asleep.asmolderAlternative form of asmoulder.asparticOf or pertaining to aspartic acid or its derivatives aspartyl(organic chemistry, especially in combination) The univalent radical obtained by removal of a hydrogen atom from the carboxylic acid group of aspartic acid aspected(astrology, obsolete) Subject to a particular planetary aspect.asperandThe symbol @; at sign.asperateTo make rough or harsh.aspergerAn aspergillum.aspergesA Christian rite in which the congregation is sprinkled with water.aspergilAlternative form of aspergillum.asperityOf sound: gratingness, harshness.aspermia(pathology, urology) A form of infertility associated with a inability to produce semen.aspermic(of a male animal) Unable to produce sperm.asperousRough, rugged, uneven.aspersedsimple past and past participle of asperse asperserOne who asperses.aspersesthird-person singular simple present indicative of asperse aspersorAlternative form of asperser.asphalteAlternative form of asphalt.asphaltsthird-person singular simple present indicative of asphalt asphodelAny of the flowering plants of the family Asphodelaceae, especially Asphodelus ramosus and Asphodelus albus; the flower of these plants.asphyticMisspelling of asphyctic.asphyxiaLoss of consciousness due to the interruption of breathing and consequent anoxia.asphyxicRelated to, or causing asphyxia aspidateShield-shaped; having the form of a flat plate.aspidium(dated, countable) Synonym of dryopteris: a member of a certain genus of ferns, including the male fern.aspinose(zoology) Lacking a spine aspinousLacking spines aspirantSomeone who aspires (for high office, etc.)aspirate(linguistics) The puff of air accompanying the release of a plosive or fricative consonant.aspirersplural of aspirer aspiringHoping to become.aspirinsplural of aspirin asplasia(pathology) Any of several forms of anemia (erythroblastopenia)asplenia(biology, medicine) Absence of normal function of the spleen, from any cause:asplenicHaving, or relating to, asplenia.asporous(botany) That does not have spores assagaieArchaic form of assegai.assagaisplural of assagai assailedsimple past and past participle of assail assailer(dated) Someone who assails assamiid(zoology) Any of the harvestmen in the family Assamiidae.assarionSynonym of as (“Ancient Roman coin”).assariusSynonym of as (“Ancient Roman coin”).assassinSomeone who intentionally kills a person, especially a professional who kills a public or political figure.assation(obsolete) Roasting, baking.assaultsplural of assault assayersplural of assayer assayingpresent participle and gerund of assay assbrain(Canada, US, slang, sometimes considered vulgar, derogatory or offensive) An idiot; a fool.asscheek(Canada, US, vulgar slang) A buttock.assclownA jerk; a buffoon; a person who is inept or ill-behaved to the point of being found laughable by others.asscrackAlternative form of ass crack.assecure(obsolete, transitive) To make safe or sure; to assure.assegaaiAlternative form of assegai.assegaisplural of assegai assemble(transitive) To put together.assemblyA set of pieces that work together in unison as a mechanism or device.assentedsimple past and past participle of assent assenterOne who assents.assentorAlternative form of assenter.assertedstated, declared or alleged, especially with confidence but no proof asserterAlternative form of assertor.assertorOne who asserts or avers.assessedsimple past and past participle of assess assesseeSomething or someone that is assessed.assessesthird-person singular simple present indicative of assess assessorOne who assesses a property for tax or insurance evaluation.assetize(transitive) To convert into an asset.asshatty(slang, vulgar, derogatory) Like an asshat; obnoxiously foolish, rude, etc.assholed(vulgar, slang, uncommon) Extremely drunk.assholesplural of asshole assholey(slang, vulgar, US, Canada, derogatory) obnoxiously inconsiderate or objectionable assholic(vulgar, informal) Of, pertaining to, being, or being like an asshole; used as a term of abuse.assholio(often humorous) asshole assident(medicine) Of a symptom, generally, but not always, accompanying a disease; indicative of the presence of a disease but not a necessary occurrence in conjunction with that disease.assiento(historical) A contract or convention between Spain and other powers for providing African slaves for the Spanish colonies in America, especially the contract made with Great Britain in 1713.assietteA plate of food, but typically a small plate containing the same food item prepared in various different ways assignat(now historical) A banknote used during the French Revolution, on the security of state land.assignedWhich has been assigned or designated for some purpose.assigneeOne to whom a thing is assigned.assignerOne who, or that which, assigns.assignor(law) The person or party which makes an assignment.assinegoAlternative form of assinico.assinico(obsolete) A stupid fellow, an ass.assinineMisspelling of asinine.assishlyIn an assish manner.assistedsimple past and past participle of assist assisterOne who assists; an assistant or helper.assistorAlternative form of assister.asslicky(slang, vulgar) Of a person, tending to curry favor with those in power in order to secure some reward, benefit, or perk.assmosis(vulgar, slang) The act of gaining favour or advantage through sycophancy.assmouth(derogatory or offensive, slang, vulgar) A term of abuse.assmunch(Canada, US, sometimes vulgar, slang, humorous) A despicable person.assoiledsimple past and past participle of assoil assoilzeAlternative form of assoilzie.assonant(prosody) Characterized by assonance; having successive similar vowel sounds.assonate(rare, poetry) To correspond or exhibit agreement in (particularly vowel) sounds.assortedsimple past and past participle of assort assorterOne who assorts, or arranges by class or category.assplant(Canada, US, slang) An unintentional landing on one's buttocks.assprint(slang, Canada, US) The mark or impression left by buttocks having been pressed against a surface.asspussy(Canada, US, very uncommon, slang, vulgar) The anus, as the receiving orifice in anal sex.assuagedsimple past and past participle of assuage assuagerSomeone who or something which assuages.assuagesthird-person singular simple present indicative of assuage assument(obsolete) A patch; an addition; a piece put on.assumingpresent participle and gerund of assume assurersplural of assurer assuringSynonym of reassuring.asswagon(derogatory, slang, vulgar) A term of abuse.asswards(Canada, US, slang) Ass first; backwards.asswhore(slang, vulgar, rare) A prostitute who is willing to do anal sex.asswipesplural of asswipe astacein(organic chemistry) A particular carotenoid.astacene(organic chemistry) The carotenoid ketone 3,5,5-trimethyl-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-(2,6,6-trimethyl-3,4-dioxocyclohexen-1-yl)octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-ene-1,2-dione astakineAny of a group of cytokines found in freshwater crayfish astatane(inorganic chemistry) astatine hydride or hydrogen astatide, HAt.astatate(inorganic chemistry) The anion AtO₃⁻; any salt containing this anion.astatide(inorganic chemistry) A binary compound of astatine and another element.astatineA highly radioactive chemical element (symbol At), one of the halogens, with atomic number 85.astatize(transitive, magnetism) To render astatic.asterane(organic chemistry) Any of a group of hydrocarbon cage compounds consisting of two cycloalkane rings linked to each other by methylene groups asteriid(zoology) Any member of the family Asteriidae of sea stars.asterion(anatomy) The point on the side of the skull corresponding to the posterior end of the parietomastoid suture.asterisc(chiefly archaic) Alternative spelling of asterisk.asterisk(transitive) To mark or replace (text, etc.) with an asterisk symbol (*; noun sense 1.1); to star.asterism(astronomy) An unofficial constellation (small group of stars that forms a visible pattern).asterite(science fiction, demonym) An inhabitant of an asteroid.asternal(anatomy, of ribs) Not sternal; that do not join the sternum.asteroid(astronomy) In the Solar System, such a body that orbits within the orbit of Jupiter.asthenia(medicine) Weakness; loss of strength.asthenicCharacterized by, or pertaining to, debility; weak; debilitating.astigmatA person who has astigmatism.astigmia(dated) astigmatism astigmicArchaic form of astigmatic.astilbesplural of astilbe astilbin(organic chemistry) A flavanonol found in Astilbe and other plants, used as an insecticide.astogenyAny morphological change in colonial zooids as the colony grows astomateWithout a stoma or mouth.astomousAlternative form of astomatous.astoniedsimple past and past participle of astony astonishTo surprise greatly.astoundsthird-person singular simple present indicative of astound astraean(zoology, obsolete) Relating to the former genus Astraea or the family Astraeidae.astragal(anatomy) Synonym of anklebone: the bone forming the ball of the ankle joint.astrakanAlternative form of astrakhan.astrallyIn an astral manner or context.astrapiaAny of the birds in the genus Astrapia, found in New Guinea.astretchStretched out, extended.astringe(transitive, obsolete) To constrict, to compress astrobot(robotics, rare) Robot designed to work in space.astroidsplural of astroid astroite(obsolete) A radiated fossil or stone; a starstone.astrolawThe practice of law in outer space.astronav(informal) astronavigation astronot(humorous, derogatory) Synonym of actornaut.astronut(slang) A person with an obsessive interest in astronomy.astronymThe name of a star, planet or other heavenly body.astucityCraftiness; astuteness.astunned(obsolete, poetic) stunned astutelyIn an astute manner.astutestsuperlative form of astute: most astute asymtopeMisspelling of asymptote.asynergydefective or absent coordination between organs, muscles, limbs or joints, resulting in a loss in movement or speed asyngamyAbsence of syngamy.asystole(pathology, cardiology) An absence of a systole; a failure of the heart to contract.asystolyAlternative form of asystole.atabaqueA tall Afro-Brazilian hand drum, traditionally having its shell made of jacaranda wood.atabrine(pharmacology) Synonym of quinacrine.ataluren(organic chemistry, pharmacology) A novel small-molecular agent designed to make ribosomes become less sensitive to, or possibly ignore, premature stop codons.ataphrid(zoology) Any gastropod in the family Ataphridae, which is probably a synonym for the family Trochaclididae.ataprost(pharmacology) A prostaglandin analogue.ataraxia(literary, Greek philosophy) Tranquility of mind; absence of mental disturbance.ataraxicOf or pertaining to ataraxia or ataraxy ataraxisThe absence of stress or anxiety; serenity.atavismsplural of atavism atavistsplural of atavist atchieveObsolete form of achieve.atebrineAlternative form of atabrine.atechnic(dated, rare, usually related to Ancient Greek rhetoric) Without technical or artistic knowledge; untechnical.ateliersplural of atelier atelurid(zoology) Any of the primitive wingless insects in the family Ateluridae.atemoyasplural of atemoya atenolol(pharmacology) A beta blocker used mainly to treat angina and high blood pressure.atextualNot textual; not derived from written works.athambiaimperturbability, ataraxia athanasyAn absence of death or the condition of everlasting life.athecate(biology) That does not have a theca atheismsplural of atheism atheistsplural of atheist atheizer(rare) One who atheizes.atheldom(rare) The state or condition of being athel or noble; nobility.atheling(puristic) A prince, especially an Anglo-Saxon prince or royal heir.athenaeaplural of athenaeum atheneumAlternative form of athenaeum.atheniumA rejected name for einsteinium.atheosisMisspelling of athetosis.atherineA small marine fish of the family Atherinidae having a silvery stripe along the sides.athermal(physics) Describing any process that does not involve either heat or a change in temperature.athermicresistant to heat passing through; heat-resistant, heatproof atheroidShaped like an ear of grain.atheroma(pathology) An abnormal fatty deposit which develops within the walls of arteries.athetiseNon-Oxford British English standard spelling of athetize.athetize(linguistics, transitive) To reject a passage of text as spurious.athetoid(medicine) characterised by athetosis athiestsMisspelling of atheists.athletesplural of athlete athletic(not comparable) Having to do with athletes.athresiaMisspelling of atresia.athyrideAny brachiopod of the order †Athyridida.atizoramA particular phosphodiesterase inhibitor.atlantad(anatomy) Toward the atlas.atlantal(anatomy) Relating to the atlas.atlantesplural of atlas atlantic(rare) Of or pertaining to the atlas, the uppermost vertebra in the spinal columns of humans and some other animals.atlantid(zoology) Any gastropod in the family Atlantidae.atlasingThe creation of a (texture) atlas atlastin(biochemistry) Any of a family of proteins whose function is to fuse cell membranes atmiatry(dated) treatment of disease by vapours or gases, as by inhalation atmologyThe branch of science dealing with the laws and phenomena of aqueous vapour.atmolyse(physical chemistry, historical, transitive) To perform atmolysis on.atmolyzeAlternative form of atmolyse.atomicalArchaic form of atomic.atomisedsimple past and past participle of atomise atomiserAlternative form of atomizer.atomismsplural of atomism atomizedConverted from liquid to a spray or mist.atomizerAn instrument for reducing a liquid to spray or vapor for disinfecting, cooling, medical use or perfume spraying.atomizesthird-person singular simple present indicative of atomize atomlessWithout atoms.atomlikeCharacteristic of or resembling an atom.atomsiteSynonym of trinitite.atonableCapable of being atoned for.atonallyIn an atonal manner; without tone.atopicalAtopic; relating to or having atopy.atosiban(medicine) A medication that inhibits oxytocin and vasopressin, used to halt premature labour.atragene(botany) Any plant of the genus Atragene.atrament(figurative, rare) Any particularly black liquid substance.atrazine(organic chemistry) A triazine herbicide that inhibits photosynthesis.atresiasplural of atresia atrichiaThe absence of hair due to congenital or acquired physical reasons.atrichic(medicine, rare) Hairless (as the palm of the hand).atriumedHaving an atrium.atrocity(countable) An extremely cruel act; a horrid act of injustice.atrogene(genetics) Any gene that has an influence on atrophy of muscle tissue.atrophiaArchaic form of atrophy.atrophic(medicine) Of, pertaining to, or arising from atrophy.atrophin(biochemistry) Any of a class of proteins found in nervous tissue.atropine(toxicology, pharmacology) An alkaloid extracted from the plant deadly nightshade (Atropa belladonna) and other sources, such as the seeds of the thorn-apple. Though overdoses would be fatal it is used as a drug in medicine for its paralytic effects (e.g. in surgery to relax muscles, in dentistry to dry the mouth, in ophthalmology to dilate the pupils).atropism(pathology) atropine poisoning atropous(botany) Not inverted; orthotropous.atroxase(biochemistry) An endopeptidase enzyme, found in the venom of the diamondback rattlesnake Crotalus atrox, that catalyzes the cleavage of His⁵-Leu, Ser⁹-His, His¹⁰-Leu, Ala¹⁴-Leu and Tyr¹⁶-Leu of insulin B chain.atrypideAlternative form of atrypid.atrypoid(biology) relating to, or characteristic of brachiopods of the genus Atrypa.atspring(intransitive, obsolete) To spring forth; emerge; spring into existence; originate.attachedsimple past and past participle of attach attacherSomeone who attaches.attachesthird-person singular simple present indicative of attach attackedsimple past and past participle of attack attackeeOne who is attacked.attackerSomeone who attacks.attaghanArchaic form of yataghan.attagirl(idiomatic, colloquial) Used to show encouragement or approval to a girl, woman, or female animal.attainedsimple past and past participle of attain attainerOne who attains.attainor(obsolete) A juror guilty of attaint attamole(physical chemistry) Alternative form of attomole.attargul(obsolete) attar of roses attemperTo temper by adjusting relative quantities, or blending qualities.attempreObsolete form of attemper.attemptsplural of attempt attendedsimple past and past participle of attend attendeeA person who is in attendance or in the audience of an event.attenderAn attendee; one who attends a course, meeting, school, etc.attentat(law, obsolete) Anything whatsoever, as a ruling, by the judge of a lower court in a matter pending an appeal.attently(obsolete) attentively attercop(dialectal, Northern England) A spider.attestedsimple past and past participle of attest attesterOne who attests.attestorOne who attests.atticfulAs much as an attic can hold.attiringpresent participle and gerund of attire attitudeThe position of the body or way of carrying oneself.attitudy(colloquial, of a person) Showing attitude; being arrogant, disrespectful, showing off one's ego.attobarn(physics) A unit of surface area equal to 10⁻¹⁸ barns.attocellA small femtocell attogram(metrology) An SI unit of mass equal to 10⁻¹⁸ grams. Symbol: ag attolentthat raises or lifts up (often of muscles)attomole(physical chemistry) 10⁻¹⁸ of a mole. This is only about 600,000 particles.attorney(US) A lawyer; one who advises or represents others in legal matters as a profession.attowatt(metrology) An SI unit of power equal to 10⁻¹⁸ watts. Symbol: aW attractsthird-person singular simple present indicative of attract attritedsimple past and past participle of attrite attriterOne who, or that which, attrites.attritorA type of grinder in which particles suspended in a liquid are moved by paddles and are ground as they collide with each other or with the grinding medium.attritusmaterial pulverized by attrition attuningpresent participle and gerund of attune atwitter(postpositive) twittering atypicalNot conforming to the normal type.aubergesplural of auberge aubretiaAny plant of the genus Aubrieta.aubrietaAlternative spelling of aubrietia.auctionsplural of auction aucupate(obsolete) To hunt, to seek with vigilance.audacityInsolent boldness, especially when imprudent or unconventional.audiallyIn terms of the sense of hearing; aurally.audiblesplural of audible audienceA group of people within hearing; specifically, a large gathering of people listening to or watching a performance, speech, etc.audientsplural of audient audiocup(especially in plural) An enclosure for a headphone that restricts ambient noise audisticRelating to or involving audism ("discrimination or prejudice against deaf people").auditingThe act or result of performing an audit.audition(countable) A performance, by an aspiring performer, to demonstrate suitability or talent.auditiveOf or relating to hearing; auditory.auditorsplural of auditor auditoryOf, or relating to hearing, or to the sense or organs of hearing.auditourObsolete form of auditor.auditual(obsolete) auditory augelite(mineralogy) A mineral with monoclinic crystals of the chemical formula Al₂(PO₄)(OH)₃.augerinoA giant mythical wormlike creature of the western US.aughtiesSynonym of aughts (“first decade of a century”).augmentsthird-person singular simple present indicative of augment augurateThe position or office of an augur.augurialRelating to augurs or to augury.auguriesplural of augury auguringpresent participle and gerund of augur auguriseAlternative form of augurize.augurismThe act of foretelling; prophecy.augurist(obsolete) An augur; a foreteller.augurizeTo predict or foretell; to augur.augurous(uncommon) Full of augury; foreboding.augustlyIn an august or awe-inspiring manner.aularian(UK, Oxford University) A member of a hall rather than a college.auletris(historical) A courtesan or prostitute in Ancient Greece who played the flute to provide entertainment.aulnagerAlternative form of alnager.aulodont(zoology) Of or pertaining to the shape of the teeth in the Aristotle's lantern of certain sea urchins aumildarAlternative form of amildar.auncientObsolete form of ancient.aunswereObsolete spelling of answer.auntcest(slang, rare, vulgar) Sexual relations with one's aunt.aunthoodThe quality or state of being an aunt.auntientObsolete form of ancient.auntlessWithout an aunt.auntlikeResembling or characteristic of an aunt.auntness(rare) the state of being an aunt.auntshipThe status of being an aunt.auntyish(informal) Characteristic of an aunt.aurachin(organic chemistry) Any of a group of antibiotics that are quinolinone derivatives aurafarmAlternative form of aura farm.auraless(rare) Without an aura or auras.auralikeResembling or characteristic of an aura.auralityThe quality of being aural.auralizeTo model acoustic phenomena in a virtual environment; to engage in auralization.auramine(organic chemistry, cytology) Any of a family of fluorescent dyes used to stain tissues for fluorescence microscopy aurantiaAn orange coal-tar dye that is an ammonium salt of hexanitrodiphenylamine.auraptenAlternative form of auraptene.aurelianPertaining to or resembling an aurelia; gold-coloured, golden.aureocinAny of a class of bacteriocins produced by Staphylococcus aureus.aureoledSurrounded by a corona or halo.aureolesplural of aureole aureolicRelating to aureolic acid or its derivatives aureolinA yellow pigment used in painting, composed of potassium cobaltinitrite.aureusin(organic chemistry) The aurone glycoside 2-[(3,4-dihydroxyphenyl)methylidene]-4-hydroxy-6-[(2S,4S,5S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1-benzofuran-3-one auricled(botany) auriculate auriclesplural of auricle auricula(anatomy) The external part of the ear.auriformHaving the form of the human ear; ear-shaped.aurilaveAn instrument for cleansing the ear, consisting of a small piece of sponge on an ivory or bone handle.auroreanBelonging to the dawn, or resembling it in brilliant hue.aurorianAlternative form of aurorean.aurorite(mineralogy) A triclinic-pinacoidal mineral containing calcium, hydrogen, manganese, oxygen, and silver.aurrescuAlternative form of aurresku.aurreskuA traditional Basque dance.ausbruchAlternative letter-case form of Ausbruch.ausonium(obsolete) A rejected name for neptunium. (Ausonium chemical symbol: Ao)auspicesplural of auspice austerercomparative form of austere: more austere austinol(organic chemistry) A polycyclic meroterpenoid present in Aspergillus australsplural of austral austrine(obsolete) Southern; southerly; austral.austriumA supposed chemical element proposed by Eduard Linnemann in 1886, later found to be gallium.autacoid(biochemistry) A hormone or similar compound that has a short-term, local effect autapticCapable of self-sensing, as in an autapse autarchyA condition of absolute power.autarkicPertaining to an autarky; self-sufficient.authalic(cartography) Of a map, equal-area.authoredHaving an author authorlyIn the manner of an author.autismal(chiefly slang, sometimes offensive) Synonym of autistic.autisticHaving autism, or pertaining to autism.autoaway(computing) An instant messaging feature that automatically marks a user as being away if the user does not interact with the computer or device in a set period of time.autobahnThe high-speed intercity highways of Germany and Austria.autobank(rare) Synonym of automated teller machine.autobaud(telecommunications) The automatic detection of a suitable baud rate by examining the incoming data.autobikeClipping of autobicycle: motorcycle; motorbike.autobiog(informal) An autobiography.autoboat(dated) A motorboat.autobodyAlternative form of auto body.autoboot(computing) To boot automatically.autocampA campground for tourists travelling by automobile.autochef(science fiction) A machine that prepares and dispenses meals.autocide(uncountable, agriculture) Control of a pest through propagation of sterile males.autoclip(surgery) A stainless steel clip, used to close wounds, that can be removed using a forceps when the wound has healed.autocode(historical, computing) Any of several early assembly languages.autocoidAlternative form of autacoid.autocook(science fiction) A machine that prepares and dispenses meals.autocoupA coup d'état in which a nation's leader, despite having come to power through legal means, dissolves or renders powerless the national legislature and unlawfully assumes extraordinary powers.autocratAn absolute ruler with infinite power.autocuedSupplied by an autocue.autocuerA device for the deaf, consisting of a pair of eyeglasses with LEDs attached, used to convert speech into visual patterns for the wearer.autocuesplural of autocue autocystA single-layered cyst.autodialA feature in computer software, etc. that dials a telephone number automatically.autodyne(radio, historical) A circuit that improved radio signal amplification by means of an audion.autoette(historical) A battery-powered microcar with two seats and three wheels, also sometimes used as a kind of wheelchair by disabled people.autofadeAny feature (of a camera, audio mixer, etc.) that fades automatically.autofill(computing) Any software feature that fills in (fields of a form, cells of a spreadsheet, etc.) automatically.autofire(science fiction) A feature that allows a weapon to fire automatically.autoflow(transitive, computing) To flow (text) automatically.autofuseTo undergo autofusion autogain(electronics) automatic amplification of a signal autogamySelf-fertilization, the fertilizing pollen being derived from the same blossom as the pistil acted upon.autogenyspontaneous generation autogiro(now uncommon) Alternative form of autogyro.autogony(dated, biology) abiogenesis autogramA sentence that describes itself, in the sense of providing an inventory of its own characters.autograt(informal, rare) A gratuity automatically added to a bill.autogyro(aircraft) An aircraft in which lift is provided by unpowered rotating wings and thrust is provided by a conventional propeller.autoharpA string instrument having a series of chord bars attached to dampers (muting bars) which mute all the strings other than those that form the desired chord.autohelmEquipment used on ships and boats to maintain a chosen course without constant human action.autohide(transitive, computing) To hide (a visual element) automatically.autoiconSomething that serves as an icon representing itself.autoiris(photography) A camera iris that adjusts automatically based on light levels.autojoin(databases, countable) A type of join from a table to itself.autokick(Internet, IRC, transitive) To kick (a user) from an IRC channel automatically.autokill(Internet, IRC) A software setting that automatically disconnects a user whenever they attempt to connect.autoland(aviation) An instance of autolanding.autolessWithout an automobile.autolith(geology) A rock fragment that has become enveloped in a larger rock of a similar type, during the latter's development and hardening.autoload(computing) To load (data or storage media) automatically.autology(uncommon, academic) The study of oneself.autoloom(India) A type of power loom.autoloop(genetics) An autoregulatory loop (in a gene regulatory network).autolyse(British) Alternative spelling of autolyze.autolyze(biology, said of a cell) To destroy itself: to be destroyed by its own enzymes.automacyThe quality, state, or condition of being automatic; automaticity.automataplural of automaton automate(ambitransitive) To replace or enhance human labor with machines.automathOne who is self-taught.automiseAlternative spelling of automize.automizeTo automate or automatize.automousMisspelling of autonomous.autonomy(uncountable) The right or condition of self-government; freedom to act or function independently.autonymyThe use of a symbol as a name for itself.autopickTo pick (or select) automatically autoplay(computing) Any software feature that plays (a video, a compact disc, etc.) automatically.autopost(transitive, Internet) To post automatically.autopsiaArchaic form of autopsy.autopsicOf, pertaining to, or characteristic of an autopsy autopticSeen with one's own eyes; belonging to, or connected with, personal observation.autorack(US) A railroad car designed for the transport of cars.autorick(informal) An autorickshaw.autorityObsolete form of authority.autosave(computing) A software facility that saves an open document (or progress in a game, etc.) periodically to avoid the risk of data loss.autosearAlternative form of auto sear.autosend(computing) A feature (of telecommunication software etc.) that sends automatically.autosign(computing, transitive) To sign (a cryptographic certificate) automatically.autositeThe independent twin of a pair of conjoined twins where the other twin is parasitic.autosledA piece of equipment used in re-laying railroad tracks, as when replacing the ties (sleepers).autosome(genetics) Any eukaryotic chromosome other than sex chromosomes.autostopA coupon-based system of hitchhiking that operated in communist Poland from the 1950s until the 1990s.autotest(British) A motorsport challenge involving a series of tests, generally around traffic cones, to measure precision driving skill.autotomy(chiefly zoology) The spontaneous removal of a limb, tail etc, especially by some invertebrates as a self-defense mechanism.autotuneAlternative form of auto-tune.autotype(uncountable, computing) A function that completes the typing of a field using a prediction based upon the characters entered so far.autotypy(dated, photography) An early photographic process that produced autotypes using a carbon pigment.autowalkA travelator or moving walkway.autowaveA self-supporting non-linear wave in active media (i.e. one of those that provide distributed energy sources).autowind(photography, transitive) To wind on (the film in a camera) automatically.autowrap(computing, ergative) To wrap (e.g. text) automatically.autozoom(photography) automatic zoom autumnalOf or relating to autumn.autunite(mineralogy) A yellow mineral with tetragonal crystals, Ca(UO₂)₂(PO₄)₂·10-12H₂O.auxiliar(obsolete) auxiliary auxinole(organic chemistry) The auxin antagonist 4-(2,4-dimethylphenyl)-2-(1H-indol-3-yl)-4-oxobutanoic acid auxogluc(organic chemistry, obsolete) The part of a molecule that imparts sweetness to the substance auxology(biology) The study of growth auxostatA continuous-culture device using feedback from a measurement taken on the growth chamber to control the media flow rate, maintaining the measurement at a constant.auxotype(cytology) A subtype of Neisseria bacteria defined by its distinctive growth responses on a medium.avacopanA medication used to treat anti-neutrophil cytoplasmic autoantibody-associated vasculitis.avadavatAny of various estrildid finches of the genus Amandava, especially the red avadavat, Amandava amandava, of India and Southeast Asia, commonly kept and bred as a cagebird; also known as Java sparrow.avadhutaIn some Indian religions, a kind of mystic or guru who has gone beyond common worldly concerns and acts without consideration for social etiquette.avagrahaA symbol (ऽ) used in the Devanagari script and other Indian scripts, used to mark vocalic gemination or the elision of the inherent vowel a in the process of sandhi in Sanskrit.availful(obsolete) Profitable, useful; of much avail.availingpresent participle and gerund of avail avanafil(pharmacology) A drug used to treat erectile dysfunction.avantpopAn American artistic movement which derived from postmodernism in the 1990s, characterized by the reuse of existing mass media materials (cinema, pop music, television, etc.) in an avant-garde manner.avataric(rare) Of or relating to an avatar.avellane(heraldry) In the form of four unhusked filberts.avelumab(medicine) A monoclonal antibody used against some carcinomas avenacinAny of a group of antimicrobials present in oats (Avena sativa).avenalinA globulin or legume-like protein found in oats.avengersplural of avenger avengingpresent participle and gerund of avenge avenious(botany) Being without veins or nerves, as the leaves of certain plants.aventailA curtain or flap of mail, fastened to a helmet, or to a coif (hood) of mail, covering the lower face, neck, and shoulders.aventureObsolete form of adventure.aveolateMisspelling of alveolate.averagedsimple past and past participle of average averagerA system or process for computing averages.averagesplural of average avercornA reserved rent in corn, formerly paid to religious houses by their tenants or farmers.avermentThe act of averring, or that which is averred; positive assertion.averringpresent participle and gerund of aver aversant(heraldry) Turned to show the back: said of a hand (or gauntlet).averselyBackward; in a backward direction aversionOpposition or repugnance of mind; fixed dislike often without any conscious reasoning.aversityThe state or condition of being averse.aversiveTending to repel; causing avoidance.avertingpresent participle and gerund of avert avertiveAlternative form of aversive.averufinA chemical compound produced when averantin is acted upon by two different enzymes, a hydroxylase and an alcohol dehydrogenase.avialianAny extinct dinosaur of the clade Avialae, together with any living descendant of class Aves (the birds).avianiseAlternative form of avianize avianize(medicine) To attenuate (something such as a virus, for example for use in a vaccine) by repeatedly culturing it in bird embryos.aviarianPertaining to or resembling an aviary ("a place for keeping birds confined").aviariesplural of aviary aviaristA person who keeps an aviary.aviatingpresent participle and gerund of aviate aviationThe art or science of making and flying aircraft.aviatorsplural of aviator aviatoryOf or relating to aviation.aviatrix(dated) A female aviator.avicidalActing as an avicide; fatal to birds.avicularOf or pertaining to a bird or to birds.avidious(obsolete) avid; eager; greedy.avidnessThe characteristic of being avid.avifaunaThe birds, or all the kinds of birds, inhabiting a region.avigatorAn aerial navigator.avimimid(zoology) Any dinosaur in the family Avimimidae.avionics(aviation) The science and technology of the development and use of electrical and electronic devices in aviation.aviphileA person who loves birds, a bird-lover.aviremiaThe condition of being aviremic aviremicFree from viruses in the blood plasma avisefulObsolete form of adviceful.avocadosplural of avocado avoidantExhibiting avoidance; avoiding something.avoidersplural of avoider avoidingpresent participle and gerund of avoid avonymicDerived from one's grandfather.avouchedsimple past and past participle of avouch avoucherOne who avouches.avoutrer(obsolete) Alternative form of avouterer.avowableCapable of being avowed or openly acknowledged with confidence.avowablyIn an avowable manner.avowanceAn act of avowing; an avowal.avowedlyWith open acknowledgment, declaration or verification.avridineAn immunostimulant drug.avulsingpresent participle and gerund of avulse avulsion(medicine, pathology) The loss or separation of a body part, either by surgery or due to trauma.avulsiveOf or pertaining to an avulsion.avvocatoAn Italian lawyer.awaitingpresent participle and gerund of await awakableAble to be awoken.awakenedsimple past and past participle of awaken awakenerOne who, or that which, awakens.awantingmissing; wanting; deficient or absent awardeesplural of awardee awardingpresent participle and gerund of award awaruite(mineralogy) An isometric-hexoctahedral mineral containing iron and nickel.awaynessThe state or condition of being away; distance; remoteness; absence; absenteeism.awayward(obsolete) Turned aside.awearied(poetic, dated) weary; made tired aweather(nautical) On the weather side, or toward the wind; in the direction from which the wind blows (See upwind)awednessThe state or quality of being awed.awfulize(intransitive, psychotherapy, psychology) To react dramatically or catastrophically to distressing events.awkwardsplural of awkward.awkweird(rare slang) Awkward and weird.awncientObsolete form of ancient.awningedHaving an awning.awntientObsolete form of ancient.aworking(obsolete) At work; in action.awqiyyahAn Egyptian unit of weight equivalent to about 37 grams (1.3 oz.)awrynessThe state of being awry.awsomestMisspelling of awesomest.axanthic(herpetology) Coloured without normal yellow or red pigments, resulting in shades of grey.axeheadsplural of axehead axestoneAlternative form of axstone.axewomanA woman who uses an axe.axhandleThe handle of an ax.axialite(physical chemistry) A multilayer aggregate of lamellar crystals spreading out from a common edge axialityThe state of being axial axiation(biology) The development of an axis (and subsequent polarity) in an embryo axifugal(archaic) Centrifugal. [from 18th c.]axigluon(physics) A proposed class of gluon that has chiral color axilemmaAlternative spelling of axolemma axillarsplural of axillar axillaryOf or pertaining to the axilla or armpit.axiology(uncountable, philosophy) The study of value(s), as regards origin, nature, functions, types, and interrelations; value theory.axiomizeAlternative form of axiomatize.axipetal(physiology, dated) Seeking the axon axipolar(physics) Having the magnetic poles aligned with the axis of rotation axitinibA small-molecule tyrosine kinase inhibitor.axiverse(physics) A postulated universe populated by axions having sizes of many different orders of magnitude.axizilla(physics) A heavy form of axion in an extension of the Standard Model.axlelessWithout axles.axleloadAlternative form of axle load.axletreeA bar or beam of wood or iron, connecting the opposite wheels of a carriage, on the ends of which the wheels revolve.axogenicRelating to axogenesis axoglialOf, pertaining to, or connecting an axon and a glial cell axographA part of a kymograph that draws scales and/or axes on the output graph axolemmaThe surface membrane of an axon axolotlsplural of axolotl axolysis(physics) The degeneration or dissolution of an axon axomadol(pharmacology) A synthetic analgesic drug.axonallyBy means of an axon.axonemalOf or pertaining to an axoneme axonemesplural of axoneme axonlessLacking an axon axopetal(physiology, dated) Seeking the axon.axophyte(botany) Any plant with an axis or stem axoplasmThe cytoplasm of an axon axoplast(biology) A dense structure, with no microtubules, located in the center or close to the nucleus of a cell, and from which radiate axopodia.axoporidAny fossil hydrozoan of the genus †Axopora axosomalRelating to an axosome axostyleA sheet of microtubules found in certain microbial eukaryotes, arising from the bases of the flagella.axymyiid(zoology) Any member of the family Axymyiidae.ayanamsa(Vedic astrology) The amount of precession.ayatollaAlternative spelling of ayatollah.ayegreenThe houseleek (Sempervivum tectorum).ayubowan(Sri Lanka) Salutation wishing the recipient a long life, typically as a greeting or a goodbye.azaacene(organic chemistry) Any compound based on an acene in which one or more carbon atoms (normally a >CH group) is replaced by a nitrogen atom azaarene(organic chemistry) Any organic compound formally derived from an arene by replacing a carbon atom (or a -CH= group) with a nitrogen atom azacrineA particular mepacrine analogue.azadiene(organic chemistry) Any vinyl imine CH₂=CH-CH=NH or CH₂=CH-N=CH₂; any derivative of these compounds azalogue(organic chemistry) A compound that is analogous to another, the only difference being that a carbon atom (normally a CH group) has been replaced with a nitrogen one azaloxanAn antidepressant drug, developed in the 1980s but never marketed.azamulinAn antimicrobial solution.azasteneAn oral contraceptive.azasugar(organic chemistry) A nitrogen derivative of a sugar in which a piperidine structure replaces a tetrahydropyran structure.azeusist(very rare, humorous) A person who does not believe in Zeus.azidated(organic chemistry) Modified by the addition of an azide azimexonA particular synthetic immunostimulant.azimuthsplural of azimuth azoarene(organic chemistry) Any azo derivative of an arene azoimideHydrazoic acid azotemia(pathology) The accumulation in the blood of nitrogen-bearing waste products (such as urea) that are usually excreted in the urine.azotemicOf or pertaining to azotemia.azotizedsimple past and past participle of azotize azoturia(medicine) An increase in the amount of nitrogenous material (such as urea) in the urine azulejosplural of azulejo azureousOf a fine blue color; azure.azuresinA complex of the azure dye 3-amino-7-dimethylamino-phenazathonium chloride coupled with carbacrylic cationic exchange resin.azvudineThe antiviral drug 4-amino-1-[(2R,3S,4R,5R)-5-azido-3-fluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one.azygetic(geometry) unpaired azygoticWithout the use of zygotes

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