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dacryocystogram(ophthalmology) A radiograph of the lacrimal apparatus.dactyliform(biology) Like a finger.dactylogramA fingerprint.dactylopatagiumThe portion of patagium found between the digits.dactylospasm(pathology) spasm (cramp) of the fingers or toesdadaismThe cultural movement of Dada.dadgum(US) Euphemistic form of goddamned.daegeum(music) A large bamboo flute with a buzzing membrane that gives it a special timbre, used in traditional Korean music.daemonismArchaic spelling of demonism.daggum(US, euphemistic, dialectal) goddamndaleemAlternative form of haleem (“stew”).daltonismAlternative letter-case form of Daltonism.damThe water reservoir resulting from placing such a structure.damnum(law) harm; detrimentdandydomThe realm or sphere of dandies.dandyismThe manners and dress of a dandy.danim(obsolete) A coin formerly used in India.daniplestimA particular therapeutic interleukin.daredevilismReckless boldness.darkroom(photography) A dark room, where photographs are developed.darksomObsolete spelling of darksome.darmstadtiumA transuranic chemical element (symbol Ds) with atomic number 110.darwinismAlternative letter-case form of Darwinism.dashcam(automotive) A digital video recorder mounted on the dashboard of a vehicle or elsewhere inside the vehicle to record occurrences in the vicinity, such as traffic accidents that the vehicle has been involved in, to provide evidence for criminal prosecutions, insurance claims, etc.dashism(rare, colloquial, dated) The act of showing off or pomp.datacomdata communicationsdatagram(networking) A packet of data passed across a network.dataismThe belief that all knowledge consists of data and that scientific theories should only be the simplest systematizations of that data.datastreamAlternative spelling of data stream.datepalmAlternative spelling of date palm.datumSingular of data: A single recorded phenomenon, especially obtained by scientific work.daturismPoisoning from hyoscyamine and scopolamine present in thorn apple and similar plants (of genus Datura).davyumA supposed chemical element discovered in 1877, later found to be a mixture of iridium and rhodium.dayawismSynonym of anitism.daybeam(poetic) A sunbeam.daydreamA spontaneous series of thoughts while awake not connected to immediate reality.dayroom(informal, US, slang) A person who switches up or acts fakedeafismA stereotypy characteristic of deaf people.deafmutismThe condition of being a deaf-mute.dealerdomThe world or sphere of dealers.deanthropomorphismSynonym of deanthropomorphization.dearm(military) to remove arms; disarmdeathism(philosophy) The belief that death is natural, inevitable, or desirable.debaptismA ceremony supposed to cancel a person's earlier baptism.debilism(psychology) A hereditary condition characterized by low intelligence in which one can understand words but not abstract concepts.debutantismThe status or behaviour of a debutante.decacalcium(chemistry, in combination) Ten atoms of calcium in a chemical compound.decadrachm(historical) A unit of currency in Ancient Greece, worth ten drachmas.decagram(metrology) An SI unit of mass equal to 10¹ grams. Symbol: dagdecamethonium(pharmacology) Synonym of decamethonium bromide.decamillennium(rare) A period of time consisting of ten thousand years.decasodium(chemistry, in combination) Ten atoms of sodium in a chemical compound (Na₁₀).decathermAlternative form of dekatherm.decelerationismA doctrine of deceleration.decennium(rare) Synonym of decade: a ten year period.decentralismA policy of favouring decentralization.decharm(transitive) To free from a charm, or charm (charisma); to disenchant.decigram(metrology) An SI unit of mass equal to 10⁻¹ grams. Symbol: dgdecim(uncommon) A decimeter.decimalism(dated) The decimal system.decimillenniumAlternative form of decamillennium.decipium(obsolete) Proposed name for a chemical element isolated from samarskite, later found to be a mixture of samarium and other rare earth elements.decisionismThe doctrine that moral or legal precepts are the product of decisions made by political or legal bodiesdeclaimTo object to something vociferously; to rail against in speech.declensionismA belief in a declining trend in a history.declinismA pessimistic belief that things are in decline.decolonialismThe theory or philosophy of decolonization.deconfirm(fandom slang, video games) To confirm a character's lack of playable status.deconstructionismThe belief in, or application of, deconstruction (theory of textual criticism).deconstructivism(cooking) The practice of deconstructing dishes.decorum(uncountable) Appropriate social behavior.decream(transitive) To remove cream from.decretalism(historical) The beliefs of the decretalists.decrimDecriminalization.decussorium(medicine, archaic) An instrument for depressing the dura after trephining.dedendumThe difference between the radius of the pitch circle of a gear and its root circle.deductivismThe use of deductive reasoning.deem(ambitransitive) To think, judge, or have or hold as an opinion; to decide or believe on consideration; to suppose.deerdomThe state or essence of a deer; deer collectively.defaitism(non-native speakers' English) Defeatism.defaultismAn approach or situation in which something occurs by default, without being explicitly introduced.defeatismAcceptance of defeat without struggle.defectionismA policy of defection.deferentialismA policy or habit of behaving deferentially.definiendum(semantics) The term (word or phrase) defined in a definition (whether inside a sentence, as a dictionary entry, or otherwise).definitionism(philosophy, metaphilosophy) The school of thought that for a theory to be properly explained it is necessary that all concepts used by the theory be well-defined.deflationism(philosophy) A theory proposing that assertions that predicate truth of a statement do not attribute a property called truth to such a statement.defoam(transitive) To remove the foam from.deformTo change the form of (something), usually thus making it disordered or irregular; to give (something) an abnormal or unusual shape.degenerationism(biology, historical) A theory stating that human conditions such as disease and savagery represent a reversion to an earlier evolutionary stage.degerm(transitive) To remove the germ from (a cereal grain etc.).degum(transitive) To remove gum from.dehaulm(transitive, agriculture) To remove the haulm or stem from.deinotheriumAlternative form of dinotherium.deismBelief in a god who ceased to intervene with existence after acting as the cause of the cosmos.dekadrachmAlternative form of decadrachm.dekagramAlternative form of decagram.dekathermA unit of energy equivalent to 10 therms.delamAbbreviation of delamination.delayismA tendency to delay.deletionism(Wikimedia jargon) The condition of being deletionist.deliquium(physical chemistry) Liquefaction through absorption of moisture from the air.deliriumWild, frenzied excitement or ecstasy.delorazepam(pharmacology) An anxiolytic benzodiazepine drug derived from desmethyldiazepam.delphinium(countable) A cultivated plant, belonging to the genus Delphinium, with tall blue-colored spikes containing flowers; a larkspur.deltaformIn the shape of the letter delta.deltaproteobacteriumAny protobacterium of the order Deltaproteobacterium.delthyrium(zoology) The opening between the beak and the hinge in certain brachiopods, through which the pedicle passes.deltidium(conchology, now rare) The triangular space under the beak of many brachiopod shells.delubrumA temple or shrine.delusionismBelief in something false; the state of being delusional.demNonstandard form of them.demagogismThe practices and principles of a demagogue; a pandering to the multitude for selfish ends.demagoguismAlternative form of demagogism.demarcationalismA propensity to demarcate (divide hierarchically)demecarium(pharmacology) A parasympathomimetic drug.demirepdomThe realm or sphere of demireps.demiromanticismThe state of being demiromantic.democratismThe principles or spirit of a democracy; the ideology of democracy.demoniacism(archaic) The state of being demoniac; possession by a demon.demonianism(now rare) Possession by a demon or demons.demoniasmAlternative form of demonianism.demonism(uncountable) Belief in, or worship of demons or devils.demonymA name for an inhabitant or native of a specific place, usually derived from the name of the place.demoxepamA benzodiazepine drug, a metabolite of chlordiazepoxide, with anticonvulsant properties.denatonium(pharmacology) A quaternary ammonium cation N-benzyl-2-(2,6-dimethylanilino)-N,N-diethyl-2-oxoethan-1-aminium benzoate; the most bitter chemical compound known, whose salts are used as aversive agents to prevent accidental ingestion of dangerous substances.dendogramMisspelling of dendrogram.dendriformHaving a branched structure similar to a tree.dendritiformAlternative form of dendriform.dendrobium(botany) Any plant of the genus Dendrobium.dendrogram(biology) A treelike diagram used to show the ancestors and descendants of species.dendronymA name for a tree.dendroplasmdendritic cytoplasmdenialismThe practice of rejecting propositions which are strongly supported by scientific or historical evidence, and often of seeking to influence policy processes and outcomes accordingly.denimA textile often made of cotton with a distinct diagonal pattern.denomAbbreviation of denomination.denominationalismThe division of one religion into separate groups, sects, schools of thought or denominations.denotatum(linguistics, philosophy) Something that is denoted; a referent.densitogramA graphical representation of the darkness of a series of spotsdentalism(phonetics) The formation of a sound using the teeth.dentaliumAny of various tooth shells of the genus Dentalium.dentatumSynonym of dentate nucleus.dentiformHaving the shape or structure of a tooth.dentinumSynonym of dentin.denturismThe illegal making and fitting of dentures by unqualified practitioners.deontologismAlternative form of deontology.deonymSynonym of theonym.departmentalismExcessive adherence to departmental methods, rules or structure.deperm(transitive, chiefly nautical) To degauss or demagnetize; especially, to degauss a ship by dragging a large powered electrical cable along its side.dephlegm(obsolete, physical chemistry) To rid of phlegm or water; to dephlegmate.deplatform(transitive, formal) To prevent someone from using a platform to express their opinion.depositum(finance, obsolete) A deposit.deposystem(geology) A sedimentary system where extensive deposition can occur.depressionismA policy or advocacy of depression.deprogram(transitive) To counteract the effects of previous programming or brainwashing, especially in an attempt to persuade (a person) to abandon allegiance to a cult.dequalinium(pharmacology) A quaternary ammonium cation whose chloride salt is used in several medications.dereismdereistic thoughtderhamArchaic form of dirham.derivationalism(linguistics) The hypothesis that the mind operates by performing sequential processing steps on an initial input.derivationism(philosophy) The idea that people can only identify what is good by deriving it from human nature; opposed to inclinationism.derm(anatomy, dated) animal skin.dermalium(zoology) A spicule on the bounding membrane of a sponge.dermatocraniumA set of bones covering the brain, eyes and nostrils in bony fishes and all land-living vertebrates.dermatographism(pathology) dermatographia (skin disorder)dermatotropismThe condition of being dermatotropic (typically, the action of a parasite moving towards the skin surface)dermographism(pathology) Synonym of dermatographia (“skin disorder”).dermotropism(pathology) The development in the skin of a lesion or other condition normally found elsewheredervishismThe lifestyle or practices of a dervish.descendentalism(philosophy) A doctrine that emphasizes empiricism and positivism; a philosophical focus on material and worldly matters.descriptionalismThe theory that mental imagery is not visual, but based on language-like descriptions.descriptionism(philosophy) The definition of truth as a description of observed reality.descriptivism(linguistics) The practice of describing realistic forms, as opposed to prescribing idealistic norms, of linguistic usage.descum(transitive) To remove the scum from.desideratumSomething that is wished for, or considered desirable, particularly when thought to be essential.designatum(semantics) That which is named or designated by a linguistic term.desmethyldiazepamThe drug nordazepam.desmocranium(anatomy) the mesenchymal primordium of the craniumdesmodiumAny member of the genus Desmodium of the flowering plant family Fabaceae, containing mostly inconspicuous legumes but some with bright or large flowers.desoxydemoxepamThe drug nordazepam.despam(Internet, transitive) To remove spam (unwanted messages) from.desperadoismThe attitudes or behaviour of desperadoes.despotismGovernment by a despot or despots: rule by a singular authority, either a single person or a tight-knit group, which rules with absolute power, especially in a cruel and oppressive way.destem(transitive) To remove the stem from (grapes, tobacco, etc.).destream(transitive, education) Synonym of detrack (“eliminate separate teaching based on pupils' ability level”).destructionism(theology) A belief in the final destruction or complete annihilation of the wicked.destructivismAn art movement that involves destroying objects in front of spectators.desulfitobacteriumAny bacterium of the genus DesulfitobacteriumdetectorismThe hobby of using a metal detector to search for buried coins, etc.deteriorationismA belief that things tend to grow progressively worse.deteriorismThe belief that society worsens over time.determinablism(philosophy, rare) A philosophy of determinablesdeterminism(computing) The property of having behavior determined only by initial state and input.detransformTo reverse a previous transformationdeuteriochloroformMisspelling of deuterochloroform.deuterium(uncountable, physics) An isotope of hydrogen with one proton and one neutron in each atom - 21H.deuterocerebrumAlternative form of deutocerebrum.deuterochloroform(organic chemistry) A deuterated form of chloroform that is used as a solvent in NMR spectroscopydeuteroplasmSynonym of deutoplasm.deutocerebrum(zoology) The median lobes of the brain of an insect.deutoplasm(biology) The food matter located in the cytoplasm of an ovum or a cell, as distinguished from the active or true protoplasm; yolk substance.deutovumThe incompletely developed larva of a mite after shedding of the choriondevaprasnam(Hinduism) An astrological ritual carried out to interpret the will of the gods.developmentalismAn economic theory which states that the best way for Third World countries to develop is through fostering a strong and varied internal market and imposing high tariffs on imported goods.deviationismDeviation from accepted beliefs or policies, especially from a prescribed form of communism.devildomA realm of devils.devilism(archaic) The character or doctrines of the Devil or devils; devilry.devoteeismThe role or state of a devotee.devotionalism(religion) Devotional behaviour.dewormTo cause an animal to excrete any worms in the digestive tract by the administration of drugs.dewwormThe earthworm.dextofisopamAn antispasmodic drug.dextrocardiogramAn electrocardiogram of the right side of the heartdextrogramAn electrocardiogram of the right side of the heartdiabolism(uncountable) Worship of the devil; SatanismdiachronismA sedimentary rock formation in which the material, although of a similar nature, varies in age with the place where it was deposited.diachylumAlternative form of diachylon.diacodium(medicine, dated) A type of syrup made from poppies.diademAn ornamental headband worn as a badge of royalty.diadrom(obsolete) A complete course or vibration, as of a pendulum.diageotropism(botany) The tendency of plant organs, especially roots, to grow horizontally.diagramA graph or chart.diaheliotropism(botany) A tendency of leaves or other plant organs to have their dorsal surface facing towards the rays of light.dialectalismAlternative form of dialecticism (“dialectism”).dialecticismThe quality of being dialectic.dialectism(linguistics) Alternative form of dialecticism.dialetheism(logic) The theory that statements can be both true and false at the same time and in the same sense. The opposite of the law of noncontradiction.dialethismAlternative form of dialetheism.dialkylammonium(organic chemistry) Any univalent cation, of general formula R₂NH₂⁺, formed by protonation of a secondary aminediallelism(genetics) diallelic inheritancedialogism(rhetoric) An imaginary speech or discussion between two or more.dialuminium(chemistry, in combination) Two aluminium atoms in a molecule.dialuminumAlternative spelling of dialuminium.diamClipping of diameter.diamagnetism(physics) a weak form of magnetism that is only observed in the presence of an external magnetic field; due to an induced magnetic field in an opposite directiondiammonium(inorganic chemistry) Two ammonium ions in a compounddiamorphismAlternative form of dimorphism.dianium(chemistry) (obsolete) niobium (although formerly thought as a distinct element)diapasm(obsolete) powdered aromatic herbs, sometimes made into little balls and strung togetherdiaperism(sexuality, formal, Canada, US, rare) A kink or fetish in which arousal is derived from diapers, especially wearing them; a kink in which one engages in diaperplay; diaper fetishism, ABDL.diaphragm(anatomy) Any of various membranes or sheets of muscle or ligament which separate one cavity from another.diapirismThe formation of diapirs; in particular, the situation where overlying sediments force lower sediments upward through the layers above.diarismThe practice of writing a diary.diarthrumPart of the vertebra of metatheriansdiaryliodonium(organic chemistry, especially in combination) Any diaryl derivative of an iodonium iondiascordium(obsolete, pharmacology) A medicine made from dried herbs, especially Teucrium scordium.diasporismSynonym of doikeyt.diastemIntervening space; interval.diastereoisomerism(physical chemistry) Any form of stereoisomerism other than enantiomerismdiastereomorphism(physical chemistry) diastereoisomerismdiastrophism(geology) The deformation of the Earth's crust to form the continents, mountains and other large featuresdiasyrm(rhetoric) Describing something already petty or mean in words that make it seem even more so.diasystem(linguistics) A system that reflects features common to a group of linguistic varieties.diathermanism(archaic, rare) The doctrine or phenomena of the transmission of radiant heat.diatom(chemistry) A molecule composed of two atoms of the same element; a homonuclear diatomic molecule.diatonicism(music) The use of the diatonic scale.diatonism(music) The characteristic of being diatonicdiatretumSynonym of cage cup.diatropism(biology) The growth or movement of a plant or animal in a direction perpendicular to a stimulus.diazepam(pharmacology) A tranquilizing muscle relaxant drug (trademark Valium) used mainly to relieve anxiety.diazonium(organic chemistry) any univalent cation, of general formula R-N₂⁺; diazonium salts are used to manufacture azo dyes, and take part in the Sandmeyer reactiondibarium(chemistry, especially in combination) Two barium atoms in a molecule.diberyllium(chemistry, especially in combination) Two beryllium atoms in a molecule.dicadmium(chemistry, especially in combination) Two cadmium atoms in a molecule.dicaesium(inorganic chemistry) Two caesium atoms in a moleculedicalciumTwo atoms of calcium in a chemical compound.dicarbenium(organic chemistry) Any carbenium ion containing two carbeniumsdicerium(inorganic chemistry, especially in combination) Two cerium atoms in a molecule.dicesiumAlternative form of dicaesium.dichasium(botany) A cymose inflorescence with all branches below the terminal flower in regular opposite pairs.dichotomism(theology) The belief that the human being is formed of two components: material (body or flesh) and spiritual (soul or spirit).dichroismThe property of some crystals of transmitting different colors of light in different directions.dichromatismThe condition of being dichromaticdichromismdichromatismdichromium(inorganic chemistry) Two chromium atoms in a moleculedichronism(biology) The quality of exhibiting two opposite traits at different times; see especially sexual dichronismdiclinism(botany) The state of having stamens or pistils in separate flowers.diclosulamThe herbicide 2′,6′-dichloro-5-ethoxy-7-fluoro[1,2,4]triazolo[1,5-c]pyrimidine-2-sulfonanilide.dicrotismThe condition of each beat of the pulse consisting of two sphygmographic waves.dictatorialismIdeology that supports dictatorship; dictatorship.dictumAn authoritative statement; a dogmatic saying; a maxim, an apothegm.dicyclohexylammonium(organic chemistry, especially in combination) The dicyclohexyl derivative of the ammonium cationdidacticism(uncountable) An artistic philosophy that emphasises instructional and informative qualities over mere entertainment.didactylism(anatomy) The condition of having only two fingers on a hand, or only two toes on a foot.diderm(biology) (of bacteria) Having two cell membranes.dideuteriumA molecule composed of two deuterium atoms, or matter composed of such molecules. Symbol: ²H₂ or D₂.didrachmAlternative form of didrachma.didymObsolete form of didymium.didymiumA mixture of praseodymium and neodymium once thought to be an element (symbol Di).didysprosium(chemistry, especially in combination) Two dysprosium atoms in a molecule.dierbium(chemistry, especially in combination) Two erbium atoms in a molecule.diergism(biology) The existence, in a single species, of two distinct ways of a structure or organ functioning.dieseldom(rail transport, uncommon, literary) the state of being dieselised, or having achieved dieselisation with the introduction of diesel locomotives.diestrum(biology) The interval between two periods of estrusdiethylaluminium(organic chemistry, in combination) A diethyl derivative of an aluminium atom or cationdiethylammonium(organic chemistry, especially in combination) The quaternary ammonium cation (CH₃-CH₂)₂NH₂⁺dieuropium(inorganic chemistry, especially in combination) Two europium atoms in a molecule.difenacoumA particular anticoagulant, used commercially as a rodenticide.diffeomorphism(mathematics) A differentiable homeomorphism (with differentiable inverse) between differentiable manifolds.differendumAn international boundary dispute.diffogram(statistics) A diagram that uses diagonal lines to display the results of multiple pairwise difference of means tests.difformirregular in form; not uniform; anomalous or dissimilardiffractogramAn image produced by a diffractometerdiffusionism(archaeology) The belief that changes in one culture are caused by diffusion of ideas from another.diflumetorimA particular fungicide.digadolinium(chemistry, especially in combination) Two gadolinium atoms in a molecule.digallium(chemistry, especially in combination) Two gallium atoms in a molecule.digermanium(chemistry, especially in combination) Two germanium atoms in a molecule.digestogramA diagrammatic representation of the extent of digestion, typically of starchdigicam(photography) A digital cameradigitalismA medical condition caused by digitalis poisoning.digitiformHaving the shape of a finger.digitigradismdigitigrade locomotiondigitoriumA small keyboard used by pianists for exercising the fingers, without producing any sound.diglottismbilingualismdiglycoformA glycoform that has two sugar moietiesdigoneutismThe quality of being digoneutic.digramA digraph (combination of two letters)dihafnium(chemistry, especially in combination) Two hafnium atoms in a molecule.dihelium(chemistry, especially in combination) Two helium atoms in a molecule.diholmium(chemistry, especially in combination) Two holmium atoms in a molecule.dihydroethidium(organic chemistry) A reduced form of ethidium that is used as a redox indicator, showing blue fluorescence until oxidized.dihydroxyaluminium(inorganic chemistry, in combination) a cation containing aluminium and two water molecules as ligandsdiindium(chemistry, especially in combination) Two indium atoms in a molecule.diiridium(chemistry, especially in combination) Two iridium atoms in a molecule.dilanthanum(chemistry, especially in combination) Two lanthanum atoms in a molecule.dilettanteismAlternative form of dilettantism.dilettantismThe act of behaving like a dilettante, of being an amateur or "dabbler", sometimes in the arts. Also the act of enjoying the arts, being a connoisseur.dilithium(inorganic chemistry) The diatomic molecule Li₂ found in the gas phase.dilogarithm(mathematics) The form of polylogarithm having a base of twodiltiazem(pharmacology) A benzothiazepine drug, a potent vasodilator used to treat hypertension, migraine, angina pectoris, and some types of arrhythmia.dilutetium(chemistry, especially in combination) Two lutetium atoms in a molecule.diluvialismThe explaining of geological phenomena by the Noachian deluge.diluviumAn inundation or flood; a deluge.dimNot bright or colorful.dimagnesium(chemistry, especially in combination) Two magnesium atoms in a molecule.dimerismThe property of being dimerous.dimethylammonium(organic chemistry, especially in combination) The univalent cation obtained by protonation of dimethylamine (CH₃)₂NH₂⁺dimethylcadmium(organic chemistry, especially in combination) Any dimethyl derivative of a cadmium cationdimethylphenylpiperaziniumA nicotinic acetylcholine receptor agonist, selective for the ganglionic subtype.dimethyltubocurarinium(pharmacology) A nondepolarizing nicotinic acetylcholine receptor antagonist used as a muscle relaxant.dimiracetamA nootropic drug of the racetam family whose derivatives may have applications in the treatment of neuropathic pain.dimolybdenum(chemistry, especially in combination) Two molybdenum atoms in a molecule.dimorphism(biology) The occurrence within a plant of two distinct forms of any part.dimwitticismA dimwitted or idiotic remark.dineodymium(chemistry, especially in combination) Two neodymium atoms in a molecule.dineptunium(chemistry, especially in combination) Two neptunium atoms in a molecule.diningroomAlternative form of dining room.diniobium(chemistry, especially in combination) Two niobium atoms in a molecule.dinkum(Australia, New Zealand, slang) Genuine, true, honest, on the level.dinornithiformAny extinct moa of the order DinornithiformesdinosauriformAny reptile of the extinct clade DinosauriformesdinotheriumAn extinct animal of large size, with elephant-like tusks curved down from its lower jaw.dinotomA photosynthetic endosymbiont in some dinoflagellatesdioecismThe devolution of a city into its formerly subordinate constituents, the opposite of synoecism.dionymA name consisting of two terms.diorism(dated) logical distinction; definitiondiosmium(chemistry, especially in combination) Two osmium atoms in a molecule.dioxouranium(chemistry, in combination) The uranyl cation or groupdipalladium(inorganic chemistry, in combination) Two palladium atoms in a moleculediphallism(informal) Synonym of diphallia.diphenismThe presence of two distinct phenotypes in a populationdiphenyleneiodonium(organic chemistry, especially in combination) An aromatic heterocyclic cation composed of two benzene rings fused with an iodolium iondiphenyliodonium(organic chemistry) The iodonium ion (C₆H₅)₂I⁺diphenyltetrazolium(organic chemistry, especially in combination) Any diphenyl derivative of a tetrazolium ion.diplatinum(chemistry, especially in combination) Two platinum atoms in a molecule.diplectanotremAny flatworm of the genus DiplectanotremadiplobacteriumA bacterium composed of two adherent bacteriadiplutonium(chemistry, especially in combination) Two plutonium atoms in a molecule.dipositronium(physics) The short-lived combination of two positronium exotic atoms that are bound together in the same way as a hydrogen moleculedipotassium(inorganic chemistry, in combination) Two atoms of potassium in a compounddipraseodymium(chemistry, especially in combination) Two praseodymium atoms in a molecule.diprotactinium(chemistry, especially in combination) Two protactinium atoms in a molecule.diprotium(inorganic chemistry) Normal molecular hydrogen H₂dipyridinium(organic chemistry, in combination) Two pyridinium ions in a moleculediquarkonium(physics) A metastable state formed from a pair of diquarksdiramA Tajikistani coin; 100 dirams equal one somoni.dirdum(dialectal, Scotland, Northern England) A scolding, a reproachdirectorium(Christianity, historical) In the later Middle Ages, a Catholic liturgical guide for praying the Divine Office and Holy Mass.dirham(numismatics) A unit of currency used in the Arab world, currently the name of the currency of Morocco and the United Arab Emirates.dirhem(historical units of measurement) A former small Turkish unit of weight, variously reckoned as 1.5–3.5 g (0.05–0.12 oz.).dirhenium(inorganic chemistry, in combination) Two atoms of rhenium in a compound.dirhmAlternative form of dirham.dirhodium(inorganic chemistry, in combination) Two atoms of rhodium in a compounddirigismAlternative form of dirigisme.dirubidium(inorganic chemistry, in combination) Two atoms of rubidium in a compounddiruthenium(chemistry, especially in combination) Two ruthenium atoms in a molecule.disableismAlternative form of disablism.disablismSynonym of ableism.disaccustom(transitive) To cause (someone) to break a habit or become unaccustomed to something that they were previously accustomed todisaffirmTo deny, contradict or repudiate.disamarium(chemistry, especially in combination) Two samarium atoms in a molecule.disarm(transitive) To deprive of weapons; to deprive of the means of attack or defense; to render defenseless.disbosomSynonym of unbosom.discandium(chemistry, especially in combination) Two scandium atoms in a molecule.discharm(transitive) To remove the charm, or power of a charm, from.disciform(botany) Having a flat, rounded shape.disciplinarianismA disciplinarian approach or attitude.disciplinariumA scourge for penitential flogging.disciplinism(education, historical) An educational approach aiming to foster effective thought and action.disclaim(transitive) To completely renounce claims to; to deny ownership of or responsibility fordiscogram(medicine) The diagnostic image produced by discography.discom(India) Acronym of distribution company (especially for electricity).disconfirm(transitive) To establish the falsity of a claim or belief; to show or to tend to show that a theory or hypothesis is not valid.discontinuumA discontinuous seriesdiselenium(chemistry, especially in combination) Two selenium atoms in a compounddisembalm(transitive) Hypothetically, to undo the embalming of.disembosom(transitive) To disburden oneself of a secret.disencharmTo free from the influence of a charm or spell; to disenchant.disequilibriumThe loss of equilibrium or stability, especially due to an imbalance of forces.disestablishmentarianismThe campaign to disestablish the Church of England.disesteemLack of esteem; disregard.disform(transitive, archaic) To deform or disfigure.disharmonism(anthropology, archaic) A disharmonious mixture; the combination of traits from different races.dishelm(poetic, ambitransitive) To deprive of a helmet.dishoom(India) onomatopoeic representation of the sound of a punch or blow.disimperialismA dismantling of or movement away from imperialism.disinform(transitive) To supply with disinformation.disjunctivism(philosophy) A school of thought that rejects the existence of sense data in certain cases, believing that a hallucination differs from a veridical experience in that the latter is the experience of an actual external entity.diskogramAlternative form of discogram.disodium(chemistry, in combination) two atoms of sodium in a compounddispensationalism(religion) A Protestant evangelical theology dividing history into distinct periods (dispensations, rooted in the writings of John Nelson Darby).dispersalismA biogeographical approach based on the idea of organisms being dispersed from their origin to other places.displuviatum(historical) A kind of cavaedium in which the roofs, instead of sloping down towards the compluvium, sloped outwards, the gutters being on the outer walls; there was still an opening in the roof, and an impluvium to catch the rain falling through.dispositionalism(philosophy) A tendency to prefer dispositional attribution rather than situational attribution.disputationismA policy of disputation.disruptionismA policy or approach based around causing disruption.dissenterismThe spirit or principles of dissenters.dissentism(rare, nonstandard) The practice or act of dissent.dissepimentarium(biology) The part of the inside of a corallite that is composed of dissepimentsdissimogramA graphical representation of the dissimilarity between two groupsdissolutionismAnarchist and nihilist social theory, taken as a whole or type.dissyllabismAlternative form of disyllabism.distiflagellum(zoology) The portion of an insect's antenna that is farthest from the body; the outermost segment of the flagellum.distogramA histogram of distances between pairs of pixels in an imagedistoseptumA thin septum of an ascospore that lacks a septal plate and is penetrated by cytoplasmic junctionsdistractionism(rare) The tendency to evade an issue by diverting attention to another.distream(poetic) To flow.distributionalism(linguistics) A general theory of language and a discovery procedure for establishing elements and structures of language based on observed usage.distributionismdistributismdistributismAn economic ideology, based on Catholic social teachings, according to which property ownership is a fundamental right and the means of production should be spread as widely as possible rather than being centralized under the control of the state, corporations, or a few individuals.distributivismdistributismdistrontium(chemistry, especially in combination) Two strontium atoms in a molecule.disulfiram(pharmacology) A synthetic compound (trademark Antabuse) used in the treatment of alcoholics to make drinking alcohol produce unpleasant after-effects.disulphiramAlternative form of disulfiram.disunionism(US, historical) The political position that the Union (the federal government of the United States) should be dissolved.disyllabismThe quality of being disyllabic, or having two syllables.ditantalum(chemistry, especially in combination) Two tantalum atoms in a molecule.ditechnetium(chemistry, especially in combination) Two technetium atoms in a molecule.ditellurium(chemistry, especially in combination) Two tellurium atoms in a molecule.diterbium(chemistry, especially in combination) Two terbium atoms in a molecule.ditercaliniumA specific bisintercalating anticancer drug.dithallium(chemistry, especially in combination) Two thallium atoms in a molecule.ditheismA belief in two deities, which may be in conflict with each other.dithorium(chemistry, especially in combination) Two thorium atoms in a molecule.dithulium(chemistry, especially in combination) Two thulium atoms in a molecule.dititanium(inorganic chemistry, in combination) Two titanium atoms in a moleculeditritiumA molecule composed of two tritium atoms, or matter composed of such molecules. Symbol: ³H₂ or T₂.dittogramSynonym of dittography (“erroneous repetition in a text”).diuranium(chemistry, especially in combination) Two uranium atoms in a molecule.diurnalismThe condition of being diurnaldivadomThe condition of being a diva; the sphere of divas.divanadium(chemistry, especially in combination) Two vanadium atoms in a compounddiversiformOf different or varying forms.diversionismThe use of diversion as a ploy to distract from an issue.diverticulum(anatomy) A small out-pouching of an organ wall such as the large intestine or urinary bladder.divisim(formal) Separately.divisionismSupport for division of a territory, etc.divitism(obsolete, rare) The condition of being rich.diytterbium(chemistry, especially in combination) Two ytterbium atoms in a molecule.diyttrium(chemistry, especially in combination) Two yttrium atoms in a molecule.dizirconium(chemistry, especially in combination) Two zirconium atoms in a molecule.djenkolismdjenkol bean poisoningdocetism(Christianity) The belief that Jesus was fully divine and only appeared or pretended to be human and to suffer.doctordomThe realm or sphere of doctors; doctors, collectively.doctrinairismdoctrinaire attitudes generallydoctrinalismThe abuse, or strict adherence, of a doctrine to a specific purpose.doctrinarianismThe principles or practices of doctrinaires.doctrinismdoctrinal rigidity; using a doctrine without any criticism.docucamA document camera.docufilmA film or video production, presenting personal, social, political or historical subject matter in a factually accurate and informative or entertaining manner that often consists of archival footage and/or interviews supported by narration.documentarism(literature) The study of the writing or sourcing of texts.dodecadactylum(obsolete) The duodenum.dodecadrachmAn Ancient Greek gold coin that had a value of twelve drachmasdodecagramA star polygon that has twelve vertices.dodecaphonism(music) Synonym of dodecaphony.dodecarhenium(chemistry, in combination) Twelve atoms of rhenium in a chemical compound. Re₁₂dodecasodium(inorganic chemistry, in combination) Twelve sodium atoms or ions in a compound.dodecyltrimethylammonium(organic chemistry, especially in combination) A quaternary ammonium cation containing one dodecyl and three methyl groupsdodgem(UK, Ireland) A bumper car in an amusement park.dodoismBeliefs or policies that are ludicrously outdated.dogdomThe state or essence of being a dog.dogedomThe role or status of doge (chief magistrate).doggerelismThe writing of doggerel.dogmaticismSynonym of dogmatism.dogmatismThe manner or character of a dogmatist; arrogance or positiveness in stating opinion.dogstagram(Internet slang) An Instagram account focused on a dog.doilemAlternative form of doylem.dolabriformShaped like the head of an axe or hatchet.doldrumBoring, uninteresting.dolichocephalism(medicine) The quality or condition of being dolichocephalic.doliiformAlternative form of dolioform.dolioform(biology) Shaped like a barrel or cask.doliolumA doliolid tunicate.doliracetamA drug from the racetam family.dolium(historical, archaeology) A large earthenware vessel used for the storage and transportation of goods (especially wine an olive oil) in the ancient Western Mediterranean.dollardomDollars generally; money, especially in the context of materialistic capitalism.dolldomThe realm or sphere of dolls.dolphinariumAn aquarium that houses dolphins.dom(BDSM) A dominant in sadomasochistic sexual practices.domainogram(genetics) A graphical representation of the domains of a genomedomatium(entomology, botany) A chamber produced by a plant in which insects, mites, or fungi live.dominionismThe belief that human beings should be free to dominate and exploit nature, including plants and animals.dominiumThe ownership of a thing.donnism(UK, university slang, archaic) self-importance; loftinessdonothingismAlternative form of do-nothingism.donumAlternative form of dunam.doomDestiny, especially terrible.doomerism(neologism) Despair and apathy caused by disbelief in the possibility of change; the mindset of doomers.doomism(climate change) The belief that serious damage from climate change is unavoidable.doomsdayismprediction of impending universal destruction or calamitydoornboom(South Africa) Vachellia horrida, a low, spreading East African shrub or tree with large thorns.doorslamThe act of slamming a door.dopplergram(astronomy) An image of the sun, made using a modified spectroheliograph, showing showing the approaching and receding motions of its atmosphere.doripenemAn injectable carbapenem antibiotic.dorkdom(colloquial) The state or essence of being a dork.dormClipping of dormitory.dormitorium(rare) A dormitory.doronicumAny of several plants of the genus Doronicum, including some called leopardsbane.dorsoatriumA dorsal atrium (in gastropods)dorsobronchiumAny of many smaller tubes that branch off from the mesobronchia.dorsum(anatomy) The back or dorsal region on the surface of an animal.dotardismSynonym of dotardness.dotcom(transitive, dated) To convert to using or being based on e-commerce.douchebagism(slang, derogatory) Sickening misbehavior.doughfaceism(derogatory) The character of a doughface; pliability of character.doughfacismThe character of a doughface; willingness to be led about by others of stronger mind and will.doveplumThe plant Coccoloba diversifolia.dowagerismThe status of a dowager.dowdyism(dated) A plain, unfashionable style of dress.downstreamToward the lower part of a stream; with the current (of a river, brook, or other flow of fluid).doxacurium(pharmacology) A muscle relaxant that acts as a nicotinic acetylcholine receptor antagonist.doxapramA respiratory stimulant.doxefazepam(pharmacology) A benzodiazepine derivative drug with anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties, used therapeutically as a hypnotic.doylem(Geordie, Mackem, Yorkshire, slang, derogatory) A stupid person; an idiot.dozenalism(very rare) The belief that people should use a base 12, or duodecimal, number system instead of decimal.drachm(units of measurement) A small unit of weight, variously:dracocephalum(botany) Any plant of the genus Dracocephalum, the dragonheads.draconianismA system of cruel or harsh laws.draconiform(rare) dragon-shapeddraconismAlternative form of dragonism.dracontium(pharmacy, obsolete) The roots and rhizomes of skunk cabbage, Symplocarpus foetidusdragondomThe world of dragons; dragons considered collectively.dragonismDespotism; the leadership of a tyrant.dram(units of measurement) A small unit of weight, variously:dramaticismThe habit of performing actions in a histrionic manner.dramatismdramatic speech or writingdrawingroomAlternative form of drawing room.drawloom(archaic, countable) A kind of loom used in weaving figured patterns.dream(countable) Imaginary events seen in the mind while sleeping.drepaniformSickle-shaped.drepanium(botany) A helicoid cyme whose successive pedicels are aligned on the same plane.dressingroomAlternative form of dressing room.dropwormThe larva of any geometrid moth, such as the cankerworm, which drops from trees by means of a thread of silk.droxicam(pharmacology) A certain oxicam drug.druidismThe religion, philosophical beliefs, and attendant ritual practices of the druids.drumAny similar hollow, cylindrical object.drunkendom(rare) drunkennessdualismDuality; the condition of being double.dubniumA transuranic chemical element (symbol Db) with atomic number 105.duchessdomThe condition or title of a duchess.ductiformHaving the form of a ductdudaimA variety of the melon Cucumis melo.dudedomThe state or quality of being a dude.dudism(usually uncountable) The state or quality of being a dude, a man who is very concerned about his dress and appearance.duelism(archaic, rare) The practice of fighting duels.duennadomThe role or status of duenna.dufferdomThe realm or sphere of duffers.dufferismThe behaviour or opinions of duffers.dukedomA region ruled by a duke or duchess.dullardismSynonym of dullardry.dum(India, cooking) cooked with steamdumbassdom(rare, slang, vulgar) The state or essence of being a dumbass.dumbdom(informal, possibly regarded as nonstandard) The quality of being dumb or stupid; stupidity.dumdumA soft-nosed bullet that expands on impact to cause a gaping wound.dunamA modern Turkish unit of surface area equal to a decare (1000 m²), equivalent to the modern Greek stremma.duncedomThe realm or domain of dunces; dunces collectively.dunumAlternative form of dunam.duodenum(anatomy) The first part of the small intestine, starting at the lower end of the stomach and extending to the jejunum.duopolism(rare) A doctrine supporting a duopoly.duoprism(geometry) A polytope resulting from the Cartesian product of two polytopes.duotheismBelief in the existence of two deities. This often refers to the belief in a god and goddess of roughly equal power, as is the case in Wicca.dupracetamA nootropic drug from the racetam family.duraliumSynonym of duralumin.duralumSynonym of duralumin.duraluminiumSynonym of duralumin.duraluminumSynonym of duralumin.durdum(archaic) noise, uproar, clamordurlobactamA beta-lactamase inhibitor used in combination with sulbactam.durum(often used attributively) Ellipsis of durum wheat.duststormA phenomenon in which gale- to hurricane-force winds blow soil particles up into a planet's atmosphere.dwalm(Scotland) A swoon; a sudden sickness.dwarfdomThe world of dwarfs (mythical creatures).dwarfismThe condition of being a dwarf (person of short stature).dwarrowdam(chiefly Tolkien fandom slang, fantasy) A female of the dwarf race.dwaumAlternative form of dwalm.dyadismThe tendency to categorize things into dyads or pairs; binary classification.dygogram(nautical) A chart showing the horizontal variation in the magnetic force acting on a ship's compass needle by the iron within the ship, as a function of course steereddykedom(slang) The state or sphere of dykes, or lesbians.dynamicismThe degree to which a process adapts to changing data or requirements.dynamismGreat energy, drive, force, or power; vigour of body, mind, or personality; oomph or pizzazz.dynamitismThe use of dynamite, i.e. for destructive purposes.dynasticismA form of government in which the rulers all belong to the same dynastic familydyotheismAlternative form of duotheism.dyothelism(Christianity, theology) The doctrine of two wills (human and divine) in Christ.dyothelitism(Christianity, theology) dyothelismdysbarism(pathology) Any medical condition resulting from changes in ambient pressure, as for example when scuba divingdysendocrinism(pathology) Any disorder of an endocrine functiondysequilibriumAlternative form of disequilibrium.dysmetabolism(biochemistry, pathology) metabolic dysfunctiondysmorphism(anatomy) any malformation of the anatomydyspancreatismDysfunction of the pancreas.dysphemism(countable) A word or phrase that is used to replace another in this way.dyspituitarism(pathology) Any condition due to incorrect secretion of the pituitary glanddysprosiumA metallic chemical element (symbol Dy) with atomic number 66: a rare earth element with a metallic silver lustre. Applications in human affairs include magnets with high performance, which are important in various machines with electric motors.dysraphismmalformation of a raphedystheismThe belief that there is a god, but that this god is not good, and possibly, although not necessarily, evil.dysthyroidism(pathology) An abnormal functioning of the thyroid gland, referring to either hyperthyroidism or hypothyroidism (thyroid hormone deficiency or excess).dystopianismThe condition of a dystopia (miserable, dysfunctional society).