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abandonnessThe state, quality, or condition of abandon; abandonmentabarognosisA loss of the ability to realise or estimate the weight of an object.abarthrosisA form of articulation that allows considerable change in position and spatial relationship between the articulated parts, and which bones move freely upon one another; diarthrosis.abashedness(rare) The state of being abashed; abashment.abbreviatesthird-person singular simple present indicative of abbreviateabdicationsplural of abdicationabecedariusAn acrostic poem in which the lines begin with the letters of the alphabet in sequence.abeliannessThe quality of being abelian.abelisaurusAn abelisaurid theropod dinosaur, of genus Abelisaurus, from the Late Cretaceous Period (Campanian) of what is now South America.aberranciesplural of aberrancyaberrationsplural of aberrationabhorrencesplural of abhorrenceabidingnessThe state or quality abiding.abietaceous(botany, relational) Of or relating to the Abietaceae.abietineous(botany) Of or relating to the Abietineae.abiogenesesplural of abiogenesisabiogenesis(evolutionary theory) The origination of living organisms from lifeless matter; such genesis as does not involve the action of living parents.abiogenistsplural of abiogenistablatitious(Late Modern, sciences, obsolete) Subtractive or tending to diminish.ablepharous(medicine) Exhibiting ablepharia; without eyelids.ablewacketsAlternative spelling of able whackets.abnegationsplural of abnegationabnormitiesplural of abnormityabominatorsplural of abominatoraboriginalsplural of aboriginalabovestairsAlternative form of above stairs.abranchiousHaving no gillsabreactionsplural of abreactionabridgmentsplural of abridgmentabrogationsplural of abrogationabsinthites(obsolete) A medicinal drink made with absinthe.absolutionsplural of absolutionabsolutismsplural of absolutismabsolutistsplural of absolutistabsorbancesplural of absorbanceabsorptionsplural of absorptionabstentionsplural of abstentionabstentiousCharacterized by abstinence; self-restraint.abstinencesplural of abstinenceabstractorsplural of abstractorabsurditiesplural of absurdityabusivenessThe quality of being abusive; rudeness of language, or violence to the person.academicals(British) The articles of dress prescribed and worn at some colleges and universities, typically on special occasions such as graduation.acarpellous(botany) Having no carpels.accelerantsplural of accelerantacceleratesthird-person singular simple present indicative of accelerateaccentmarksplural of accentmarkaccentuatesthird-person singular simple present indicative of accentuateacceptancesplural of acceptanceaccessariesplural of accessaryaccessoriesplural of accessoryacclivitiesplural of acclivityaccompaniesthird-person singular simple present indicative of accompanyaccomplicesplural of accompliceaccordancesplural of accordanceaccountantsplural of accountantaccountingsplural of accountingaccountlessNot held to account; treated as unaccountable.accumulatesthird-person singular simple present indicative of accumulateaccusationsplural of accusationaccusativesplural of accusativeacerbicnessThe state or quality of being acerbic.acetabulouscup-shaped; acetabular.achondritesplural of achondriteachromatousLacking normal colour; colourlessacidiferousContaining or yielding an acid.acidimetersplural of acidimeteracidophilusLactobacillus acidophilus, one of the bacteria commonly used in fermenting yogurtacoelomatesplural of acoelomateacotyledonsplural of acotyledonacrimonious(figuratively) Angry, acid, and sharp in delivering argumentative replies: bitter, mean-spirited, sharp in language or tone.acroagnosis(pathology) The loss of the sensory recognition of a limbacroamaticsesoteric lectures.acrocarpous(botany) Developing the archegonium on the summit of the primary stem; fruiting at tips, in the manner of mosses.acrocinesis(pathology) Alternative form of acrocinesia.acrodromous(botany) Alternative form of acrodrome.acrokinesis(pathology) Alternative form of acrocinesia.acromphalus(pathology) An abnormal protrusion of the navel that sometimes leads to umbilical herniaacromyodousSynonym of acromyodic.acronyctous(astronomy, archaic) acronycalacronymitis(humorous) The excessive use of acronyms.acropolisesplural of acropolisacrosporous(archaic) having acrosporesacrylamidesplural of acrylamideactinomeresplural of actinomereactinomycesAny bacterium (species) of the genus Actinomyces.actinovirusAny virus of the genus Actinovirusactivationsplural of activationactlessnessAbsence of an act; failure to act; inaction.actomyosinsplural of actomyosinactualitiesplural of actualityactuatoricsThe science and technology of actuatorsacutenessesplural of acutenessadaptationsplural of adaptationadaptedness(uncountable) The state of being adapted; suitableness; fitness.addititious(rare, obsolete) Additive; Increasing.addresslessWithout an address.adenoiditis(medicine) Inflammation of the adenoid in the human throat.adenomatous(pathology) Of or pertaining to adenomaadenomyosis(pathology) A medical condition characterized by the presence of ectopic glandular tissue in the surrounding muscles, often and especially of the endometrial tissue of the uterus in the myometrium (endometriosis).adeomatosisMisspelling of adenomatosis.adiaphanousNot transparent; not translucent; not diaphanous; opaque.adiaphorousneither harmful nor beneficialadipocerousLike, or containing, adipocere.adipogenousProducing fat.adiposenessThe state or quality of being adipose.adipostasisThe regulation of adipose tissue in the bodyadjacenciesplural of adjacencyadjointness(uncountable) The state or quality of being adjoint.adjudicatesthird-person singular simple present indicative of adjudicateadjunctionsplural of adjunctionadjurationsplural of adjurationadjustmentsplural of adjustmentadmanuensis(UK, law, historical) In old English law, one taking a corporal oath, that is, by laying the hand on the Bible, in distinction from one taking the oath in other forms, or affirming.administersthird-person singular simple present indicative of administeradmiraltiesplural of admiraltyadmirationsplural of admirationadmonitionsplural of admonitionadolescentsplural of adolescentadrenalinesplural of adrenalineadrenalitis(pathology) Inflammation of one or both adrenal glands, leading to an insufficiency of cortisol and/or aldosterone.adsorptionsplural of adsorptionadulterantsplural of adulterantadulteratesthird-person singular simple present indicative of adulterateadventerousObsolete form of adventurous.adventurersplural of adventureradventuressA female adventurer; a woman who seeks adventure.adventurous(of a person) Inclined to adventure; willing to take risks; prone to embark on hazardous enterprises; daring.adversariesplural of adversaryadversenessThe state or quality of being adverse, or opposed.adversitiesplural of adversityadvertencesplural of advertenceadvertisersplural of advertiseradvisednessThe state or quality of being advised—of being done or used advisedly.advocatress(rare) A female advocate.aeciosporesplural of aeciosporeaerobicizesthird-person singular simple present indicative of aerobicizeaerodromics(obsolete) The science of flying airplanesaerogeneousAlternative form of aerogenous.aerogenesisThe production of gas or air.aerogrammesplural of aerogramme, the alternative spelling of aerogram.aerohydrousComposed of or containing air and water.aerokinesis(fantasy, science fiction) A telekinetic ability to control the movement of air.aeronauticsThe design, construction, mathematics, and mechanics of aircraft and other flying objects; the study of and control of how aviation works.aerophagous(medicine) Of, relating to, or characterised by aerophagy.aerophilousSynonym of aerophilic.aerophysics(physics) The physics of the design and construction of aerodynamic devicesaerostatics(physics) the study of gases in equilibrium and of balloons or aircraft in varying atmospheric conditionsaestiferous(comparable, chiefly figurative) Producing much (aestival) heat.aetiologicsThe study of aetiologies.aetiologiesplural of aetiologyaffablenessThe state or quality of being affable.affixednessThe state or quality of being affixed.afflictionsplural of afflictionafflictress(rare) A female afflicter.affordables(rare) Anything that is affordable.affordancesplural of affordanceaficionadosplural of aficionadoafterimagesplural of afterimageaftershavesplural of aftershaveaftershocksplural of aftershockaftertastesplural of aftertasteagainstnessThe state or quality of being against.aganactesis(rhetoric) An exclamation made out of a sense of deep indignation.agangliosis(medicine) Aganglionosis.agatiferousContaining or yielding agates.agelessnessThe state or quality of being ageless.agglutininsplural of agglutininagglutinousSubject to agglutinationaggregatorsplural of aggregatoraggressionsplural of aggressionagnogenesis(pathology) The unknown cause of a diseaseagomphiasisLooseness of the teeth.agonothetesplural of agonotheteagoraphobesplural of agoraphobeagranulosis(rare) agranulocytosisagrimetrics(statistics, agriculture) The measurement of fields or agricultural data.agrocenosisSynonym of agroecosystem.agroexpress(genetics) To express a gene by means of agroinfiltrationagronomistsplural of agronomistagrophysicsbiophysics as it relates to agricultureahydramnios(medicine) Anhydramnios.ailanthusesplural of ailanthusaimlessnessThe state or quality of being aimless, or without purpose or direction.airfreightsthird-person singular simple present indicative of airfreightairgraphics(dated) aerography; meteorologyairlessnessThe state or condition of being poorly ventilated; lacking good air circulation, having stale air.airportlessWithout an airport.airsicknessA feeling of nausea, dizziness etc. caused by the motion of an aircraft; a form of motion sickness.aithochrousreddish-brown, ruddyakropolisesplural of akropolisalamodenessThe state or quality of being a la mode.alariaceous(botany) Belonging to the family Alariaceae of brown algae.albatrossesplural of albatrossalbiflorous(botany) Having white flowers.albugineous(anatomy) Resembling the white of the eye, or of an egg. It is applied to various white or whitish things in the body.albuminoidsplural of albuminoidalbuminosis(archaic, pathology) A condition of the blood characterized by the presence of more than the usual amount of albumin; hyperalbuminemia.alcohollessWithout alcohol.alcoholysis(organic chemistry) Solvolysis using an alcohol.aldermaness(rare) A female alderman; an alderwoman.alfamovirusAny mosaic virus of the genus Alfamovirusalgebraistsplural of algebraistalgesthesis(medicine) Perception or sensation of pain.alginuresisPainful urination; dysuria.algologistsplural of algologistalgophagousThat eats algaealienationsplural of alienationalienatress(rare) A female alienator.alismaceous(botany) Belonging to the Alismaceae (syn. Alismataceae) of water plantains and close relatives.alkaligrassThe saltgrass Puccinelliaalkylationsplural of alkylationallaballies(obsolete) Alternative form of alliballies.allantiasis(pathology, archaic) Food poisoning (especially botulism) as a result of eating poorly cooked sausages.allantoidesplural of allantoisallegationsplural of allegationallegiancesplural of allegianceallegoristsplural of allegoristallegorizesthird-person singular simple present indicative of allegorizeallegrettosplural of allegrettoallexivirusAny virus of the genus Allexivirusalliballies(obsolete) A kind of cotton cloth from India.alliteratesthird-person singular simple present indicative of alliterateallnightersplural of allnighterallocamelusA fictional animal, apparently based on early reports of llamas, which has the head of an ass or mule and the body of a camel.allocationsplural of allocationallochroousChanged in color, as plumage after moultingallocutionsplural of allocutionallogeneousof a different nature or kind.allophonics(linguistics) Allophony or its studyallopoiesis(philosophy) Creation of or by something other than the self.allospecies(biology) Any of the species that make up a superspeciesallotropiesplural of allotropyallotropous(botany) Pertaining to a flower which attracts a large range of different insects to feed on its nectar.alloverness(art) The non-differential treatment of the surface of a two-dimensional artwork such as a painting, giving it a sense of uniformity and a lack of focus.allroundersplural of allrounderallurementsplural of allurementallylaminesplural of allylaminealmacantarsplural of almacantaralmsgivingsplural of almsgivingalmucantarsplural of almucantaralpenstocksplural of alpenstockalphabeticsThe study of the alphabet, the sounds associated with each letter, and the construction of written words.alphamericsalphanumeric charactersalreadinessThe state or quality of being or happening already.alsinaceous(botany, historical) Of or pertaining to the Alsinaceae (Caryophyllaceae) family, especially chickweed.altarclothsplural of altarclothaltarpiecesplural of altarpiecealterationsplural of alterationalternancesplural of alternancealternatorsplural of alternatoraltimetricsAlternative form of altimetry.altocumulus(physics, meteorology) A fleecy cloud formation consisting of large whitish or greyish globular cloudlets with shaded portions, often grouped in flocks or rows. (Abbreviated Ac.)altogethersplural of altogether (“nakedness”)altostratus(physics, meteorology) A principal medium-level cloud type in the form of a gray or bluish (never white) sheet or layer of striated, fibrous, or uniform appearance.alumiferousSynonym of aluminiferous.amadelphousOutgoing; gregarious.amalgamatesthird-person singular simple present indicative of amalgamateamalgavirus(virology) Any phytopathogenic RNA virus of the genus Amalgavirus.amaryllisesplural of amaryllisamativeness(phrenology) The state or quality of being amative; propensity to love or sexual feelings.amazingnessThe state or quality, of being amazing.ambassadorsplural of ambassadorambientnessThe quality of being ambient.ambiguitiesplural of ambiguityambilaevousAlternative spelling of ambilevous.ambiloquousUsing ambiguous expressions; speaking or writing in a way that may be variously interpreted.ambiquitous(biochemistry, biochemistry) having the ability to reversibly bind to stationary subcellular structures (such as the cytoskeleton or membrane)ambisexualsplural of ambisexualambophilousRelating to ambophilyamelioratesthird-person singular simple present indicative of ameliorateameloblastsplural of ameloblastamenorrheasplural of amenorrheaamentaceous(botany) Bearing, resembling, or consisting of an ament or aments.amercementsplural of amercementametabolousAlternative form of ametabolic.amiablenessThe state or quality of being amiable.amianthusesplural of amianthusamigrainous(medicine) Not migrainous; not migraine-like.aminostasis(physiology) The maintenance of a constant level of amino acids in the blood (by means of satiety)aminosugarsplural of aminosugarammonolysis(inorganic chemistry, organic chemistry) Any reaction with ammonia, analogous to hydrolysis, in which a bond is broken and an NH₂ group is appended to one fragmentammophilousThriving in a sandy environment.ammunitionsplural of ammunitionamoebocytesplural of amoebocyteamorevolous(obsolete) affectionate; loving.amorousnessThe state or quality of being amorous.ampelovirusAny virus of the genus Ampelovirus that typically infect plantsamphiboliesplural of amphibolyamphibolous(obsolete outside philosophy, linguistics) Ambiguous; doubtful or unclear.amphibrachsplural of amphibrachamphicelous(anatomy, of verterbae) concave on both sides, or both endsamphictyonsplural of amphictyonamphigamous(botany, archaic) entirely cellular in structure, with no distinct sexual organs.amphigenous(botany) growing on all sides of a leaf, as in the lichensamphigonous(biology) Relating to, or originating from, both parents.amphigynous(botany) Completely surrounding the oogonial stalkamphioxusesplural of amphioxusamphipodous(zoology) Of or pertaining to the Amphipoda.amphivorousSynonym of ambivorous.amphoriskos(historical) A two-handled jar anciently used to hold perfume, etc.ampropylfosA particular fungicide.amputationsplural of amputationamusingnessThe state or quality of being amusing.amusivenessThe state or quality of being amusive.amygdalitis(obsolete) tonsillitisamygdaloidsplural of amygdaloidamyloidosis(medicine) Any of a group of disorders in which the fibrous protein amyloid is deposited in an organ of the body.amyloplastsplural of amyloplastanabaptistsplural of anabaptistanabranchesplural of anabranchanacamptics(obsolete) The science of reflection of light or soundanacanthous(botany, zoology) Without thorns or spines.anachoresis(medicine) The transportation of foreign bodies via blood or lymph and subsequent collection at a site of inflammation.anachronous(rare) Synonym of anachronistic.anaclasticsThe part of optics that deals with the refraction of light.anacoenosis(rhetoric) A rhetorical device by which a speaker appeals to their hearers or opponents for their opinion on the point or matter in debate.anacyclosisA cyclical theory of political evolution.anadiplosesplural of anadiplosisanadiplosis(rhetoric) A figure of speech in which a word or phrase used at the end of a clause or expression is repeated near the beginning of the next clause or expression.anaerobious(archaic) anaerobicanaesthesisloss of feeling; insensibilityanaglyptics(art) The art of carving or embossing in low reliefanagnorisisThe moment in the plot of a drama in which the hero makes a discovery that explains previously unexplained events or situations; a denouement.anamorphousdistorted, deformedanantherous(botany) Without anthersanaphonesis(phonology) The raising of /e/, /o/ to /i/, /u/ before certain consonantal environments, mainly [ŋ] and /ʎ/, occurring originally in some Tuscan dialects, and thus in Standard Italian.anaphoresis(physics) The movement of electrically charged particles towards an anode.anaphylaxisExtreme sensitivity to a substance such as a foreign protein or drug.anaplerosisThe replenishment of a deficiency, or refilling of the space left by a destroyed part.anapophysis(animal anatomy) A backward-pointing process in the lumbar vertebrae of some mammals.anastamosisMisspelling of anastomosis.anastomosesplural of anastomosisanastomosisA cross-connection between two blood vessels.anastrophesplural of anastropheanastylosis(archaeology) The reassembly of ruined monuments or other artifacts from remaining fragments in an archeologically responsible way (with use of modern materials when needed).anatiferous(obsolete) Producing ducks.anatomilessHaving no clear anatomy.anchoressesplural of anchoressanchoritessA female anchorite; an anchoress.ancientnessThe state or quality of being ancient.ancillariesplural of ancillaryandroecious(biology, botany, zoology) Having masculine reproductive organs.androgenous(biochemistry) Of, pertaining to, or producing androgens; androgenicandrogynousPossessing the sex organs of both sexes.androstanesplural of androstaneanellivirusMisspelling of anellovirus.anellovirusAny virus of the family Anelloviridaeanemiaceous(botany) Belonging to the Anemiaceae.anemogamous(botany) That reproduces via anemogamy.anemographsplural of anemographanemometersplural of anemometeranestheticsplural of anestheticanfractuoussinuous, twisty, winding.angelfishesplural of angelfishangelicnessThe state or quality of being angelic.angelsharksplural of angelsharkangiectasisSynonym of angiectasia.angioaccessA surgically created access point to the bloodstream.angiomatousRelating to an angioma.angiospermsplural of angiospermangiostasis(physiology) The normal regulation of the creation of new blood vesselsanglophilesplural of anglophileanglophobesplural of anglophobeanglophonesplural of anglophoneanguishless(rare) Without anguish.angularnessThe state or quality of being angular.angwantibosplural of angwantiboaniacinosisSynonym of aniacinamidosis.animalculesplural of animalculeanimatenessThe state or condition of being animate.animosenessThe state or quality of being animose.animositiesplural of animosityanisakiasis(pathology) The disease caused by infection with Anisakis worms (usually through eating raw fish), characterised by violent abdominal pain, nausea, and vomiting.anisogamousbeing married to someone whose age differs by an unusually large degree from one's own.anisomerousHaving varied parts; nonuniformanisotomous(botany) Having unequal or irregular divisions.anklebitersplural of anklebiterankylosaursplural of ankylosaurannexationsplural of annexationannihilatesthird-person singular simple present indicative of annihilateannonaceous(botany) Of or pertaining to the soursop and other members of the Annonaceae family.annotationsplural of annotationannulationsplural of annulationannunciatesthird-person singular simple present indicative of annunciateanonymitiesplural of anonymityanotherkins(UK, regional, obsolete) Of another kind.anoxybiosis(physiology) A biological response triggered by a lack of oxygen in which an organism takes in water and becomes turgid and immobile; possibly a form of cryptobiosis.antagonisesthird-person singular simple present indicative of antagoniseantagonismsplural of antagonismantagonistsplural of antagonistantagonizesthird-person singular simple present indicative of antagonizeantecedentsplural of antecedentantecessorsplural of antecessoranteclypeus(entomology) The lower part of a divided clypeus, between the postclypeus and the labrumantennalessWithout antennae.anthocaulusA polyp that develops asexually on the skeletons of some coral species.anthologiesplural of anthologyanthracenesplural of anthraceneanthracosis(pneumology, pathology) A relatively mild pneumoconiosis caused by inhalation of coal.anthropoidsplural of anthropoidantibaryonsplural of antibaryonantibilious(pharmacology) Countering liver disorder.antibioticsplural of antibioticanticarious(dentistry) That prevents, or counteracts cariesantichresis(civil law) An agreement by which a debtor gives a creditor the use of real property to be able to pay interest and principal of the debt.antichristsplural of antichristanticipantsplural of anticipantanticipatesthird-person singular simple present indicative of anticipateanticommonsThe reverse of a commons; a situation in which a resource is subject to fragmented rights, whereby potential users can exclude one another.antidromous(botany) Changing the direction in the spiral sequence of leaves on a stem.antiemeticsplural of antiemeticantifreezesplural of antifreezeantifungalsplural of antifungalantihelixesplural of antihelixantiheroicsThe actions (heroics) of an antihero.antileptonsplural of antileptonantimeasles(immunology) Working against measles.antimitosisinhibition of mitosisantimonialsplural of antimonialantimoniousOf or containing antimony.antinomiansplural of antinomianantinucleus(particle physics) The nucleus of an antiatomantipathiesplural of antipathyantipathous(obsolete) Synonym of antipathic.antiphonalsplural of antiphonalantiphoniesplural of antiphonyantiphrasis(rhetoric) Use of a word or phrase in a sense opposite of its literal meaning, especially for ironic or humorous effect.antipodeansplural of antipodeanantiportersplural of antiporterantiprotonsplural of antiprotonantipyresis(medicine) The reduction of fever.antipyrinesplural of antipyrineantiquariesplural of antiquaryantiquenessThe state or quality of being antique.antiquitiesplural of antiquityantiquitousPertaining to antiquity; ancient.antiracistsplural of antiracistantiricketsPreventing rickets.antirrhesis(rhetoric) A discrediting or rejection of an authority.antiscabiesPreventing or curing scabies.antisemitesplural of antisemiteantisepticsplural of antisepticantitetanusSynonym of antitetanicantitropous(botany) Displaying, of, or pertaining to antitropy.antixenosisThat counters xenosisantthrushesplural of antthrushanxiolyticsplural of anxiolyticanxiousnessThe state of being anxious.aortectasis(medicine) Alternative form of aortectasia.apatosaurusA large sauropod dinosaur of the genus Apatosaurus of the late Jurassic Period, having a long neck and tail and a relatively small head.aphthovirusAny of a group of viruses, of the genus Aphthovirus, responsible for diseases such as foot and mouthapicalwardstowards an apexapicotarsus(zoology) An apical tarsusapneumonous(zoology) Without lungs.apocalypsesplural of apocalypseapocrinitis(dermatology) The formation of abscesses in the sweat glands.apolausticsThe philosophy of the pleasurable.apollinaris(archaic) A type of sparkling mineral water.apologeticsA systematic defense of a position, or of religious or occult doctrine.apologizersplural of apologizerapomorphous(phylogenetics) apomorphicaponecrosisA form of apoptosis that is inhibited prior to completionaponeurosesplural of aponeurosisaponeurosis(anatomy) A flattened pearly white fibrous membrane taking the place of a tendon that binds together and forms the terminations and attachments of muscles or connects them to other body parts like skin or bone.apopetalous(botany) Having distinct or free petals.apophthegmsplural of apophthegmapophysitis(pathology) Inflammation of an apophysis, a bony tubercle.apoproteinsplural of apoproteinaposepalous(botany) Having multiple, distinct sepalsaposiopesesplural of aposiopesisaposiopesis(rhetoric) An abrupt breaking-off in speech, often indicated in print using an ellipsis (…) or an em dash (—).apostatisesthird-person singular simple present indicative of apostatiseapostatizesthird-person singular simple present indicative of apostatizeapostolatesplural of apostolateapostrophesplural of apostropheapoxyomenos(art) A conventional subject of ancient Greek votive sculpture: an athlete caught in the familiar act of scraping sweat and dust from his body with a strigil.apparatusesplural of apparatusapparitionsplural of apparitionappearancesplural of appearanceappeaselessThat cannot be appeased.appetenciesplural of appetencyapplicatorsplural of applicatorappositionsplural of appositionappositivesplural of appositiveappreciatesthird-person singular simple present indicative of appreciateapprenticesplural of apprenticeaptronymous(rare) Of or pertaining to an aptronym.aquaerobicsSynonym of water aerobics.aquafitnesswater aerobics, typically preceded or followed by stretching exercisesaquamanilesplural of aquamanileaquamarinesplural of aquamarineaquametrics(chemistry) The analysis of trace amounts of water in a sampleaqueousnessThe state or quality of being aqueous.arabidopsisAny cress (or related plant) of the genus Arabidopsisaraliaceous(botany, relational) Of or relating to the family Araliaceae.arbitratorsplural of arbitratorarboraceousOf or relating to trees.arbovirosis(pathology) Any disease caused by an arbovirus.arbovirusesplural of arbovirusarchaicnessThe quality of being archaic.archallaxisThe complete elimination of palingenetic features during the development of an embryo, such that ontogeny begins with an early deviation from the ancestral pattern.archbishopsplural of archbishoparchduchessA daughter or granddaughter of the Emperor of Austria-Hungary, or the wife of a son or grandson of the Emperor of Austria-Hungaryarchebiosis(biology) The origination of living matter from non-living; abiogenesis.archenemiesplural of archenemyarcheovirusAny virus that infects archaeansarchitravesplural of architravearchivorousIngesting archaeans (as the archivores do).archnemesisA chief nemesis.archonshipsplural of archonshiparcifinious(law, dated) Having a natural boundary, like a river, rather than an artificial dividing line.arctophilesplural of arctophilearduousnessThe state of being arduous.arenicolous(biology) Living or burrowing in sand.areophysicsThe geophysics of Mars.aristocratsplural of aristocratarithmeticsplural of arithmeticarmageddonsplural of armageddonarmlessnessThe state or condition of being armless; a lack of arms.arpeggiatesthird-person singular simple present indicative of arpeggiatearrhythmiasplural of arrhythmia, which can refer to types of arrhythmia, cases of arrhythmia, or episodes of arrhythmia.arrogationsplural of arrogationarsenicosis(pathology) arsenic poisoningarsenoxidesplural of arsenoxidearterivirusAny animal virus of the family Arteriviridaearthralgiasplural of arthralgiaarthritides(medicine) plural of arthritisarthrodesesplural of arthrodesisarthrodesis(medicine, surgery) The surgical fusion of a joint between two or more bones so that the joint can no longer move; artificial ankylosis.arthrolysis(surgery) The restoration of mobility in stiff, ankylosed joints by disrupting articular adhesionsarthromeresplural of arthromerearthrorisisSynonym of arthroereisis.articleless(grammar) Without articles.articulatesthird-person singular simple present indicative of articulateartificialsThings that are artificial.artificious(obsolete) Using, exhibiting, performed with or characterized by artfulness or skillartlessnessthe state or quality of being artlessartophagous(rare) bread-eatingarundineous(rare) Abounding in reeds; reedy.asafoetidasplural of asafoetidaasanguinous(surgery) That involves no loss of bloodascititiousadscititiousascocarpousHaving an ascocarpascogenesisThe production of ascomata; the production of these sacs and ascospores therein.ascomycetesplural of ascomyceteascosporousSynonym of ascosporic.ascriptionsplural of ascriptionashamednessThe state or quality of being ashamed.ashlessnessAbsence of ash (combustion product).asininenessThe quality of being asinine.asparagusesplural of asparagusaspergillusAny of many molds, of the genus Aspergillus, many of which are pathogenic.aspermatousAlternative form of aspermous.asphaltenesplural of asphalteneasphaltitesplural of asphaltiteasphyxiatesthird-person singular simple present indicative of asphyxiateaspidistrasplural of aspidistraaspirationsplural of aspirationassassinous(obsolete) Murderous; assassin-like.assemblagesplural of assemblageassessmentsplural of assessmentassholeness(informal, US, vulgar) The state of being an asshole.assignmentsplural of assignmentassimilatesthird-person singular simple present indicative of assimilateassistancesplural of assistanceasslessness(Canada, US, slang) The quality of being assless.assumptionsplural of assumptionassumptiousAssuming; presumptuous; prone to assume things or take them for granted.assurednessThe state or quality of being assured.asteraceous(botany, relational) Of or relating to the family Asteraceae.astigmaticsplural of astigmaticastriferousBearing stars.astringentsplural of astringentastroblemesplural of astroblemeastroethicsSynonym of xenoethics.astroglosisMisspelling of astrogliosis.astrologersplural of astrologerastrologess(dated) A female astrologer.astronomersplural of astronomerastronomess(dated) A female astronomer.astronomiesplural of astronomyasundernessThe state or quality of being asunder.asymmetriesplural of asymmetryasymmetrous(obsolete) Asymmetrical.asymptotics(mathematics) asymptotic analysisasynchronusMisspelling of asynchronous.asyncronousMisspelling of asynchronous.asynonymousSynonym of nonsynonymous.atelectasesplural of atelectasisatelectasis(medicine) The collapse of a part of or the whole lung caused by inner factors rather than a pneumothorax.athermanousNot transmitting heat.atmospheresplural of atmosphereatomtronics(physics) The design, manufacture and study of analogs of electronics using atoms (especially Bose-Einstein condensates) at low temperatureatonalitiesplural of atonalityatrabilious(medicine, obsolete) Having an excess of black bile.atramentousInky, inklike, atramental.atriovenousOf the spatial relationship between the primary veins and the atria of the heart.atropaceousBelonging to the genus Atropa.attachmentsplural of attachmentattainmentsplural of attainmentattemptlessNot making or not having made an attempt.attendancesplural of attendanceattenuatorsplural of attenuatorattonementsplural of attonementattophysics(physics) The branch of physics concerned with dynamic processes that take place with a time resolution of the order of attosecondsattractantsplural of attractantattractionsplural of attractionattritenessThe state or quality of being attrite.attunednessThe quality of being attuned.attunementsplural of attunementauctioneersplural of auctioneeraudiblenessThe state or quality of being audible.audiophilesplural of audiophileauditoriumsplural of auditoriumaugmentless(grammar) Lacking augment.aukwardnessObsolete form of awkwardness.aurantiasis(medicine) A golden-yellow discoloration of the skin.aureusvirusAny plant virus of the genus Aureusvirusauricularis(anatomy) Any of three muscles attaching the cartilage of the external ear to the skull.austerenessThe state of being austereausteritiesplural of austerityauthogenousMisspelling of autogenous.authonomousMisspelling of autonomous.authoressesplural of authoressauthoritiesplural of authorityauthorizersplural of authorizerautocarpous(botany) Having fruit formed by self-pollination.autochorousRelating to or spread by autochory.autochthonsplural of autochthon.autocinesisAlternative form of autokinesis.autocraciesplural of autocracyautocratess(archaic) A female autocrat.autocrinousSynonym of autocrine.autoctonousMisspelling of autochthonous.autodidactsplural of autodidactautogeneousMisspelling of autogenous.autogenesis(biology) The supposed creation of living organisms from nonliving matter.autokinesisA visual illusion in which a stationary source of light appears to move.autolatrousself-worshippingautoloadersplural of autoloaderautolysatesplural of autolysateautomationsplural of automationautomatismsplural of automatismautomatistsplural of automatistautomobilesplural of automobileautomotivesplural of automotiveautophagiesplural of autophagyautophagousSelf-eating; exhibiting autophagy.autophanous(rare) Producing its own light.autopoiesis(systems theory) Self-creation; self-organization.autoprocess(biochemistry, of an enzyme) To act on the enzyme itselfautorepressTo cause or undergo autorepression.autosporousOf or relating to autospores.autothonousMisspelling of autochthonous.autoworkersplural of autoworkerauxiliariesplural of auxiliaryauxocaulous(phycology) Exhibiting further enlargement of segments formed by secondary growth after their initial formation, so that filaments have a conspicuously greater diameter than the apical cell that generated them.avellaneousOf a hazel color.averagenessThe state or quality of being average.avipoxvirusAny of the viruses of the genus Avipoxvirus (family Poxviridae) that infect birds.avocadolessWithout avocadoes.avoirdupois(historical) The official system of weights used in the UK between 1856 and 1963. It had been the customary system in London since 1300.awarenessesplural of awarenessawelessnessThe state or quality of being aweless.awesomenessThe quality of being awesome.awkwardnessThe state or quality of being awkward; clumsiness; unskillfulness.awnlessnessAbsence of an awn.axiogenesis(cosmogony) A mechanism in which the cosmological excess of baryons over antibaryons is generated from the rotation of the QCD axion.axonolipousBelonging to the Axonolipa.axonotmesisA form of nerve crush injury associated with disruption of the neuronal axon, but with maintenance of the myelin sheath.azollaceous(botany, relational) Of or relating to the Azollaceae.