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dabuzalgronAn alpha-adrenergic agonist.daffynitionA form of pun involving the reinterpretation of an existing word, on the basis that it sounds like another word or phrase.dalbavancinA lipoglycopeptide antibiotic.dalvastatin(pharmacology) An antilipidemic drug.dansylation(organic chemistry) Modification by the addition of a dansyl groupdaphnetoxinA diterpenoid toxin, related to daphnane, present in plants of the family Thymelaeaceaedaphnoretin(organic chemistry) A particular hydroxycoumarin.darbepoetinA synthetic form of erythropoietin, used to treat anemia.darifenacin(pharmacology) A medication used to treat urinary incontinence.daughterkin(endearing) A daughter.deaccessionTo officially remove an object from a ledger of a museum, art gallery or library so that it may be sold or disposed.deacylation(organic chemistry) The removal of one or more acyl groups from a compound.deaddictionrehabilitation for the purpose of curing addictiondeamidation(organic chemistry) Conversion of an amide to a carboxylic acid.deamination(organic chemistry) The removal of an amino group from a compound.deanimationThe process of deanimating.dearylation(organic chemistry) The removal of an aryl group from a moleculedeassertion(electronics) The act of deasserting.deazaflavin(organic chemistry) A flavin in which one nitrogen has been replaced by carbondebarcationAlternative form of debarkation.debarkationDisembarkation.debellation(international law, uncommon) The annihilation of a sovereign state through its complete destruction in a war.debridationAlternative form of debridement.debrisoquinAlternative form of debrisoquine.decachordon(music) Synonym of decachord.decantationthe act of decanting the supernatant liquid from a solid sedimentdecaudationThe act of decaudating, or removing the tail from something.decennalian(obsolete) Synonym of decennial, of or related to a ten-year period.decertation(obsolete) contest for mastery; contention; strifedechelation(chemistry) The disruption of a chelate compounddeciduationThe shedding of the decidua during menstruationdeciliationThe removal of ciliadeclamationThe act or art of declaiming; rhetorical delivery; loud speaking in public.declarationAn emphatic or formal act of saying, telling or asserting something, by speech or writing; a decisive assertion or proclamation.declinarian(historical, derogatory) A supporter of Charles Babbage's Reflections on the Decline of Science and some of its Causes (1830), a paper criticizing the failure of government to support scientific research.declinationAt a given point, the angle between magnetic north and true north.decollationThe act of beheading someone.decondition(transitive) To adapt to a less demanding environment than that to which one was previously conditioned.deconfusion(mathematics) A statistical technique, similar to independent component analysis, for separating correlated data.decurtation(obsolete) The act of cutting short.decussationA crossing or intersection of lines etc. so as to form an X-shape.decyanation(chemistry) The removal of a cyanide (or nitrile) group from a moleculededentation(programming, informal, rare) The reversal of indentation, moving the text cursor back out from its indented position.dedentition(rare) The shedding of teeth; tooth lossdefaecationAlternative form of defecation.defalcation(law) The act of cancelling part of a claim by deducting a smaller claim which the claimant owes to the defendant.defaunation(ecology) The loss of animals from a habitatdefibrationbreakage into fibresdefiliationThe separation of a child from its parents.deflorationthe act of defloweringdefoliationThe separation of ripened leaves from a branch or stem; the falling or shedding of the leaves.deformationThe act of deforming, or state of being deformed.degermationReducing the number of microbes.deglutition(physiology) The act or process of swallowing.deglycation(biochemistry) The removal of a sugar moiety from a glycoproteindegradationThe act of reducing in rank, character, or reputation, or of abasing; a lowering from one's standing or rank in office or societydegredationMisspelling of degradation.degustationtasting, especially as a form of careful appreciationdehortation(archaic) Advice against something; dissuasion.dehydrationThe act or process of removing water from something.deificationThe act of deifying; exaltation to divine honors; apotheosis.deimination(biochemistry, genetics) The removal or conversion of an imine group; especially the post-translational modification of the amino acid arginine in a protein into the amino acid citrullinedeinductionThe inhibition of inductiondeinsertionThe undoing of a previous insertiondeisolationThe process of deisolating.delactationThe act of weaning.delectationGreat pleasure; delight.delibrationObsolete form of deliberation.delineationThe act of delineating; depiction.deliquation(obsolete) An act of melting or dissolving.deliverymanSomeone employed to make deliveries.deliverymenplural of deliverymandelphinidinAn anthocyanidin, primary plant pigment, and antioxidant, responsible for the blue colour in delphiniums and other flowers and fruits.deltahedron(geometry) A polyhedron whose faces are all equilateral triangles.deltohedronA polyhedron whose faces are kites (deltoids). The dual polyhedron of a regular n-gonal antiprism.demarcationThe act of marking off a boundary or setting a limit, notably by belligerents signing a treaty or ceasefire.demarkationAlternative spelling of demarcation.dementation(archaic) The act of depriving of reason; madness.demibastion(military) A half bastion, or the part of a bastion consisting of one face and one flank.demigration(seismology) the process of reversing seismic migration, transforming a depth-migrated (or time-migrated) image back into a simulated unmigrated seismic time section (data domain)demoxytocinAn obstetric drug, an analogue of oxytocin.denagliptin(pharmacology) A particular antidiabetic and protease inhibitor.dendroaspin(biochemistry) A toxic protein in the venom of the mamba Dendroaspisdendrolasin(organic chemistry) The monoterpenoid derivative of furan 3-[(3E)-4,8-dimethylnona-3,7-dienyl]furan present in sweet potatodendrotoxinAny of a class of neurotoxins produced by mamba snakesdenervation(medicine) The removal or blocking of a nerve connection to tissue, such as by surgical or chemical means.deniculatinA particular steroid glycoside.denigrationThe act of making black; a blackening or defamation.denitration(chemistry) The removal of nitrate or other nitrogen compounds, especially from water; denitrificationdenutrition(physiology) The opposition of nutrition; the failure of nutrition, causing the breakdown of tissue.deoxidation(chemistry) The process of extracting the oxygen content of a dissolved oxide, or of removing dissolved oxygen, with the aid of a reducing agent.departition(transitive) to remove the partitions from; to merge back into a single unitdepensation(ecology) A decrease in the breeding population and thus of offspringdeperdition(archaic) Synonym of loss or destruction.deplication(obsolete) An unfolding, unplaiting, or untwisting.deplorationThe act of deploring or lamenting; lamentation.deplumationThe stripping or falling off of plumes or feathers.deportationThe act of deporting or exiling, or the state of being deported; banishment; transportation.depravationDetraction; depreciation.deprecation(uncountable) The act of deprecating.depredationAn act of consuming agricultural resources (crops, livestock), especially as plunder.deprivation(countable) The act of depriving, dispossessing, or bereaving.deprovision(transitive, computing) To free up or delete the accounts, resources, etc. of (a system, or a user who will no longer be using a system).depulpationAn operation to remove pulpderelictionWillful neglect of one's duty.dermapteranAny of various insects of the order Dermaptera; earwig.dermaseptin(biochemistry) Any of a group of peptides, isolated from the skin of some frogs, that have properties that may be useful for drug deliverydermopteran(mammalogy) Any mammal in the order Dermoptera, a colugo.descriptionThe act of describing; a delineation by marks or signs.desecrationAn act of disrespect or impiety towards something considered sacred.deselectionThe process or act of deselecting.desiccation(uncountable) The state or process of being desiccateddesignathonA collaborative event where people meet to design things.designationAn act or instance of designatingdesiltationThe process of removing silt from a body of water.desintegrinMisspelling of disintegrin.desmocalmin(biochemistry) A protein, found in bovine desmosomes, that binds calmodulindesmocollin(biochemistry) Any of a family of glycoproteins (cadherin), found in desmosomes, responsible for intercellular adhesion.desmoplakin(biochemistry) Any of a family of proteins isolated from desmosomesdesodiation(inorganic chemistry) The replacement of sodium ions with those of another metal (typically lithium)desolvationThe removal of solvent from a material in solutiondesperationThe act of despairing or becoming desperate; a giving up of hope.despumationThe act of giving off froth or scum.dessicationMisspelling of desiccation.destination(countable) The place set for the end of a journey, or to which something is sent; place or point aimed at.destitution(now rare) Discharge from office; dismissal.destructionThe act of destroying.desulfationThe removal of sulfatedeteriationMisspelling of deterioration.deterrationThe uncovering of anything buried or covered with earth; an unearthing.detestationHate coupled with disgust; abhorrence.detorubicin(pharmacology) A particular anthracycline antibiotic.deturbation(obsolete) The act of deturbating; removal or eviction.deturpation(obsolete) A defilement, an act of making foul.deubiquitinAlternative form of deubiquitinase.deuterationSynonym of deuteriation: The act of adding deuterium.devacuationLoss or removal of vacuum (“reduction of pressure below that of the atmosphere”).devaluationThe removal or lessening of something's value.devastationThe act of devastating, or the state of being devastated; a laying waste.dexefaroxanA beta-adrenergic blocking drug.dextrorphan(pharmacology) A psychoactive morphinan drug that acts as an antitussive and dissociative hallucinogen.diacylation(organic chemistry) The simultaneous addition of two acyl groups to a moleculediadelphian(obsolete, botany) Of or relating to the former class Diadelphia; having the stamens united into two bodies by their filaments (said of a plant or flower)dialysationAlternative form of dialyzation.dialyzation(chemistry, archaic) dialysisdiamination(organic chemistry) Any reaction that results in the formation of a diaminediamutationMisspelling of dismutation.diaphtherin(obsolete, medicine) A dental antiseptic derived from hydroxyquinoline and a phenolsulfonic aciddiarisationAlternative form of diarization.diarizationIn voice recognition, the process of partitioning an input audio stream into homogeneous segments according to the speaker identity, so as to identify different speakers' turns in a conversation.diarylation(organic chemistry) Any arylation reaction in which two aryl groups are added to a moleculediatessaron(music, obsolete) The interval of a fourth or the harmonic ratio 4:3.diatomaceanSynonym of diatomaceous.diazidation(organic chemistry) Any reaction that produces a diazidediazotation(organic chemistry) Any reaction that forms a diazo compounddibenzyltin(organic chemistry) Any divalent dibenzyl organotin radicaldicotyledon(botany) A plant whose seedling has two cotyledons.dictatorian(obsolete) dictatorialdidacticianOne who teaches.dietetician(dated) Synonym of dietitian.diffraction(physics) The bending of a wave around an obstacle.digacetininA particular steroid glycoside.digilanogenA particular steroid glycoside.digitaloninA particular steroid glycoside.digithapsinA particular steroid glycoside.digitogenin(organic chemistry) The aglycone of digitonin.digoxigenin(biology) A steroid found exclusively in the flowers and leaves of the plants Digitalis purpurea and Digitalis lanata.digoxygenin(organic chemistry, medicine) The steroid aglycon of digoxin, obtained from foxgloves, used to label DNA and RNA probesdilaniation(obsolete) A tearing into piecesdiluviation(geology) The formation of deposits by flood-like operations of water.dimidiationThe act of dividing into halves.dimorphodonA pterodactyl of the family Dimorphodontidae; a dimorphodontid.dindunuffinAlternative form of dindu nuffin.dineolignan(organic chemistry) Any compound having a structure based on a dineolignanedinitration(organic chemistry) Any nitration reaction in which two nitro groups are introduced into a compound.dinoceratanAny of various extinct mammals, of the order †Dinocerata (syn. Uintatheria), somewhat similar to the rhinoceros.dinophyceanAny benthic dinoflagellate of the class DinophyceaedinosaurianOf, like, or pertaining to a dinosaur.dinotefuranA particular insecticide of the neonicotinoid class.dinoxanthin(organic chemistry) A xanthophyll present in dinoflagellatesdipartitionSynonym of bipartition.diplohedron(crystallography) Synonym of diploid.diplokaryonA tetraploid cell nucleusdipolariton(physics) A polariton having an electrical dipole moment.diradiation(obsolete) The emission and diffusion of rays of light.disadhesionA loss of adhesion, especially that which leads to dehiscencedisaggregin(biochemistry) A fibrinogen receptor antagonist present in the tick Ornithodoros moubatadiscerptionThe act of pulling or tearing something to piecesdiscohesionThe disruption of cohesiondiscorsiounObsolete spelling of discursion.disdiapason(music, Ancient Greece) An interval of two octavesdisemburden(transitive) To disburden.disfixation(linguistic morphology) Word-formation involving a disfix; subtracting a morpheme from a word.disfunctionNonstandard spelling of dysfunction.disgarrisonTo deprive of a garrison.disgressionObsolete spelling of digression.disillusion(transitive) To free or deprive of illusion; to disenchant.disimprison(transitive) To free or release from a state of imprisonment.disintegrin(biochemistry) Any of a family of polypeptides, isolated from venom, that interact with integrin proteins and inhibit the clumping of plateletsdisjunctionThe act of disjoining; disunion, separation.dislocationThe act of displacing, or the state of being displaced.dismutation(biochemistry) A disproportionation reaction, especially in a biological context, in which oxidized and reduced forms of a chemical species are produced simultaneouslydisparition(obsolete or nonstandard) The act of disappearing; disappearance.dispiration(physics) A singularity associated with screw symmetry or a screw displacement, especially in liquid crystals and crystalline polymers; related to dislocation and disclination.dispositionThe way in which something or someone is disposed or disposed of (in any sense of those terms); thus:disputationThe act of disputing; a dispute or argument.disrelationThe condition or process of being separated; the severance of a relation.dissilition(obsolete) The act of bursting, or breaking apart.dissipationThe act of dissipating or dispersing; a state of dispersion or separation; dispersion; waste.dissolutionThe termination of an organized body or legislative assembly, especially a formal dismissal.distinctionThat which distinguishes; a single occurrence of a determining factor or feature, the fact of being divided; separation, discrimination.distractionSomething that distracts.distriction(obsolete) Sudden display; flash; glitter.diubiquitin(biochemistry) A dimer of ubiquitin; the motif responsible for its biosynthesisdivulgationThe act of divulging or publishing; publication.dixanthogenAn ectoparasiticide.dockisationAlternative form of dockization.dockizationconversion of an area of water into a dock, by excluding the tide with a damdockyardmanA laborer employed in a dockyard.docoglossan(zoology) Any member of the Docoglossa.docufiction(film) A cinematographic combination of documentary and fiction.dodecaedronAlternative spelling of dodecahedron.dodecandrin(biochemistry) A small protein that inhibits the action of ribosomesdodecathlonA gymnastics competition comprising twelve subcompetitions.dopamelanin(biochemistry) A form of melanin that is a mixed copolymer of polyacetylene, polyaniline, and polypyrrole.dorsimedianAlternative form of dorsomedian.dorsomedianSynonym of dorsomedial.douchewagon(vulgar, slang, humorous) A rude, obnoxious, or contemptible person.downsection(geology) Towards the lower part of a section.downtrodden(figuratively) Oppressed, persecuted or subjugated.doxorubicin(pharmacology) An anthracycline antibiotic drug (trademark Adriamycin) with broad antineoplastic activity that is obtained from a bacterium (Streptomyces peucetius subsp. caesius) and is administered in the form of its hydrochloride C₂₇H₂₉NO₁₁·HCl in chemotherapy.doxyrubicinMisspelling of doxorubicin.draftswomanA woman employed in making drawings.draftswomenplural of draftswomandraughtsmanA person skilled at drawing engineering or architectural plans.draughtsmenplural of draughtsmandromedarianA dromedary camel.drosophilanAny fruit fly of the genus Drosophila.drosopterin(organic chemistry) A pteridine, 3,10-diamino-14-methyl-5,6,6a,6b,7,9-hexahydro-4h-pyrimido[4,5:2',3'][1,4]diazepino[6',5':3,4]pyrrolo[1,2-f]pteridine-1,12-dione, that is a red eye pigment of Drosophila melanogaster; any of a class of related compounds.drygoodsmanA man who sells dry goods.dryomorphanAny dinosaur of the taxon DryomorphadualisationAlternative form of dualization.dualizationThe process of dualizing.dubitatiounObsolete spelling of dubitation.dulcoration(archaic) sweetening.duocarmycinAny of a series of related natural products isolated from Streptomyces bacteria, with potent antitumor properties.duplicationThe act of duplicating.dutogliptin(pharmacology) A particular gliptin drug.dyscohesion(biology) The disruption of cohesion between cellsdysfunction(nonstandard, intransitive, chiefly biology) To fail to function correctly; to malfunction.dysjunction(chiefly medicine) Separation of structures that are normally joined.