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18 Letter Words Starting With D

Explore 206 English words that start with D and contain exactly 18 letters. Common examples include deanthropomorphism, deperimeterization, depotentialization, disacknowledgement, disialotransferrin.

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18-Letter D Words by Ending Letter

All 206 18-Letter Words Starting With D

datacommunicationsAlternative form of data communications.deacetoxyscirpenolA particular mycotoxin.deacetyllanatosideA particular steroid glycoside.deaggressivization(psychoanalysis) Neutralising the urges of aggression.deanthropomorphismSynonym of deanthropomorphization.decachlorobiphenyl(organic chemistry) The fully chlorinated polychlorinated biphenyl containing ten chlorine atomsdecafluorobiphenyl(organic chemistry) The perfluorinated derivative of biphenyldecahydroquinoline(organic chemistry) The bicyclic amine formally obtained by the hydrogenation of quinoline; any of its derivatives that occur naturally as alkaloidsdecarbopalladation(organic chemistry) The reverse of a carbopalladation reactiondecategorification(mathematics) The reverse process of categorification: The mapping of a category theoretic category to a set by using a systematic process in which isomorphic objects in a category are identified as equal.dechristianizationThe act of dechristianizing; the systematic removal of Christianity or Christian elements.decollectivisationAlternative form of decollectivization.decollectivizationThe reversal of a previous collectivizationdecompactification(mathematics, physics) The reverse of a compactificationdecompartmentaliseAlternative spelling of decompartmentalize.decompartmentalize(transitive) To restore from a compartmentalized state; to merge back together from a set of categories.decomplexificationThe process of decomplexifying.decompositionalityThe property of being decompositional, or proceeding by decomposition.deconstructabilitythe ease with which something such as a building, can be deconstructeddeconstructionistsplural of deconstructionistdeconstructivenessThe quality of being deconstructive.deconstructivisticOf or relating to deconstructivism.decontextualizableCapable of being decontextualized.decylplastoquinone(organic chemistry) A decyl derivative of plastoquinone.defecalgesiophobia(medicine, very rare) The fear of painful bowel movements.defictionalizationThe process of defictionalizing.definitionlessnessLack of definition.deglucohyrcanosideA particular steroid glycoside.dehydrobromination(chemistry) Any reaction in which the elements of hydrogen bromide are removed from a moleculedehydrochlorinatedModified by dehydrochlorinationdehydrocholesterol(organic chemistry) A sterol, 7-dehydrocholesterol, found in the skin, that, on exposure to light, is converted into vitamin Ddehydrocorydalmine(organic chemistry) A quaternary isoquinoline alkaloid isolated from Argemone mexicana, the Mexican poppy.dehydrocyclisationAlternative spelling of dehydrocyclization.dehydrocyclization(organic chemistry) Simultaneous dehydrogenation and cyclization, especially as part of petroleum refiningdehydrodiconiferol(organic chemistry) The dimer of coniferol 4-[3-(hydroxymethyl)-5-[(E)-3-hydroxyprop-1-enyl]-7-methoxy-2,3-dihydro-1-benzofuran-2-yl]-2-methoxyphenoldehydrodiconiferyl(organic chemistry) Relating to dehydrodiconiferoldehydropalladation(organic chemistry) The reverse of a hydropalladation reactiondehydrosphinganine(organic chemistry) An oxidised form of sphinganine; 3-dehydrosphinganine is an intermediate if sphingolipid metabolismdeinstitutionaliseAlternative spelling of deinstitutionalize.deinstitutionalize(transitive) To perform deinstitutionalization upon; to free from an institution or from dependence upon an institution.deinternationaliseAlternative form of de-internationalize.deinternationalizeAlternative form of de-internationalize.dendrochronologistOne who carries out dendrochronology.dendroecologicallyIn terms of, or by means of, dendroecology.dendrohydrologicalRelating to dendrohydrology.dentilabialization(phonetics) The process of dentilabializing.dentomaxillofacialRelating to the teeth, the maxilla, and the face.deoxyanthocyanidin(organic chemistry) Any derivative of an anthocyanidin in which a hydroxy group has been replaced by a hydrogen atomdeoxyerythronolide(organic chemistry) The macrocyclic aglycone of the antibiotic erythromycindeoxyfluoroglucose(organic chemistry) Synonym of fluorodeoxyglucose.deoxyribothymidine(organic chemistry) A nucleoside formed from deoxyribose and thymidinedeoxytylophorinine(organic chemistry) A class of methoxy indolizines, such as 3,6,7-trimethoxy-9,11,12,13,13a,14-hexahydrophenanthro[9,10-f]indolizine, that have anticancer activitydeparameterizationThe act or process, or an instance, of deparameterizing.deperimeterization(computer security) The removal of a boundary between an organization and the outside world, allowing (suitably authenticated) access from any location.depoliticalizationAlternative form of depoliticization.depolyploidizationThe reversal of prior polyploidizationdepotentializationThe process of depotentializing.deproblematizationThe process of deproblematizing.depseudonymization(computing) The reverse process to pseudonymizationdermatoborreliosis(pathology) borreliosis of the skindermatofibromatousRelating to dermatofibroma.dermatopathologistOne who practises dermatopathology.dermatopathophobia(medicine, rare) A fear of skin disease.dermatotherapeuticRelating to dermatotherapydermatovenereologyThe study of the effects of sexually transmitted disease on the skindesacetyloleandrinA particular steroid glycoside.descetyllanatosideA particular steroid glycoside.desethylamiodaroneA metabolite related to amiodarone by removal of one or more ethyl groupsdesmethoxycurcuminA curcuminoid found in turmeric.desmethoxyyangoninA particular kavalactone.desmethyltamoxifen(organic chemistry) A metabolite of tamoxifen that lacks an N-methyl groupdesoxyhemigossypol(organic chemistry) The phenolic phytoalexin 10-methyl-7-propan-2-yl-2-oxatricyclo[6.3.1.0^{4,12}]dodeca-1(11),4,6,8(12),9-pentaene-5,6-diol produced by the cotton plant (Gossypium)desoxyribonucleaseAlternative form of deoxyribonuclease.despiritualizationThe process of despiritualizing.desubjectificationThe process of desubjectifying.desulfitobacteriumAny bacterium of the genus DesulfitobacteriumdeubiquitinylatingAlternative spelling of deubiquitinating.deubiquitinylationAlternative spelling of deubiquitination.deuteriochloroformMisspelling of deuterochloroform.dexbrompheniramineA particular antihistamine drug, the dextrorotatory isomer of brompheniramine.dexmethylphenidateA psychostimulant, a dopamine reuptake inhibitor that affects the central nervous system and is used to treat ADHD. It is judged to have a high potential for abuse (Schedule II in the US). Chemical formula: C₁₄H₁₉NO₂.dextrocycloversion(medicine) A condition in which the top of the eye rotates to the right.dextropropoxyphene(pharmacology) A particular narcotic painkiller.diacetoxyscirpenol(organic chemistry) A mycotoxin from the group of type-A trichothecenes. It is a secondary metabolite product of fungi of the genus Fusarium and may cause toxicosis in farm animals.diacetylchitobiose(organic chemistry) Any diacetyl derivative of chitobiose, but especially N,N-diacetylchitobiose that is a breakdown product of chitindiacetylnalorphineAn opioid drug, the 3,6-diacetyl ester of nalorphine.diaheliotropicallyIn a diaheliotropic manner.dialecticalisationAlternative spelling of dialecticalization.dialecticalizationThe act or process of making dialectical.diallylthiambuteneAn opioid analgesic drug from the thiambutene family.diaminocyclohexane(organic chemistry) Any of several isomeric diamino derivatives of cyclohexanediaminofluorescein(organic chemistry) A fluorescein into which two amino groups have been substituteddiaminonaphthalene(organic chemistry) Any of several isomeric diamino derivatives of naphthalenediaminoquinazoline(organic chemistry) Any diamino derivative of a quinazolinediarylheterocyclic(organic chemistry) Describing a diaryl derivative of a heterocyclic compounddiastereochemistry(chemistry) The chemistry of diastereomersdiastereoisomerism(physical chemistry) Any form of stereoisomerism other than enantiomerismdiastereomericallyIn a diastereomeric mannerdiastereoselection(physical chemistry) selection of the required diastereoisomer in a reaction, especially by using diastereocontroldiastereoselectiveOf, pertaining to, or exhibiting diastereoselectivitydiazabicyclooctane(organic chemistry) The caged tertiary diamine 1,4-diazabicyclo[2.2.2]octanediazoacetylacetone(organic chemistry) Any diazo derivative of acetylacetonediazodinitrophenol(organic chemistry) The first diazo compound produced, used to make dyes and explosives, and forming yellow crystals in its pure form.dibenzocyclooctyne(organic chemistry) Any dibenzo derivative of cyclooctynedibromopropamidineAlternative form of dibrompropamidine.dibromoterfluorene(organic chemistry) A dibromo derivative of terfluorenedichloralphenazoneA 1:2 mixture of antipyrine with chloral hydrate, used in headache medications.dichloroindophenol(organic chemistry) A blue dye used in the laboratory analysis of photosynthesisdichloroisocyanide(organic chemistry) The dichloromethyleneamino group -N=CCl₂dichlorophenarsineAn antiinfective drug.dicyclopentadienyl(organic chemistry) Two cyclopentadienyl radicals in a moleculedidaskaleinophobiaThe fear of going to school.diethylaminomethyl(organic chemistry, especially in combination) Any diethylamino derivative of a methyl groupdiethylcarbamazineA synthetic anthelmintic drug.diethylenetriamine(organic chemistry) A colourless hygroscopic liquid, an analogue of diethylene glycol.diethylnitrosamine(organic chemistry) The nitrosamine (CH₃-CH₂)₂N-N=O, which is both carcinogenic and mutagenic.diethylstilbestrol(organic chemistry, pharmacology) A synthetic estrogen drug C₁₈H₂₀O₂ used formerly to prevent miscarriage or premature delivery in humans and to promote growth in livestock. The medical use of diethystilbestrol was discontinued in the U.S. during the early 1970s due to its association with serious side effects (such as reproductive tract abnormalities and increased rates of infertility) in offspring exposed to the drug while developing in the uterus. It is no longer commercially available in the U.S. and its use is currently limited to specially compounded formulations for veterinary care.diethylthiambutene(pharmacology) A particular narcotic painkiller.diethynylcinnoline(organic chemistry) Any diethynyl derivative of cinnolinedietotherapeuticalRelating to the therapeutic effects of one's dietdifferentiatednessThe quality of being differentiated.digitalopyranosideA particular steroid glycoside.dihydroartemisinin(organic chemistry, pharmacology) An antimalarial drug, the active metabolite of all artemisinin compounds, also available as a drug in itself.dihydroergocornineAn ergot alkaloid, one of the three components of ergoloid along with dihydroergocristine and dihydroergocryptine.dihydrogenmonoxideAlternative spelling of dihydrogen monoxide.dihydroisocoumarin(organic chemistry) Any of a group of phenolic derivatives of isocoumarindihydromethysticinA particular kavalactone.dihydrosepiapterin(organic chemistry) A derivative of tetrahydrobiopterindihydrosphingosine(organic chemistry) sphinganinedihydrotachysterolA synthetic vitamin D analogue, activated in the liver, that does not require renal hydroxylation like vitamins D₂ and D₃.dihydroxyaluminium(inorganic chemistry, in combination) a cation containing aluminium and two water molecules as ligandsdihydroxypteridine(organic chemistry) A chemical derivative of pteridine with two hydroxy groups, most likely lumazine.diiodohydroquinone(organic chemistry) Any diiodo derivative of hydroquinonediisopropanolamine(organic chemistry) The secondary amine N,N-bis(2-hydroxypropyl)aminedimensionalisationAlternative spelling of dimensionalization.dimensionalizationThe process of dimensionalizingdimercaptosuccinic(organic chemistry) Designating an acid similar to succinic acid but containing two instances of the radical –SH.dimethylacrylamide(organic chemistry) Any N-dimethyl derivative of acrylamidedimethylanthracene(organic chemistry) Any of several isomeric dimethyl derivatives of anthracenedimethylargininase(biochemistry) An enzyme that catalyzes the chemical reaction N-omega,N-omega'-methyl-L-arginine + H₂O ⇌ dimethylamine + L-citrulline.dimethyldiselenide(organic chemistry) The organoselenium compound CH₃SeSeCH₃dimethyldisulphideAlternative spelling of dimethyldisulfide.dimethylsulphoxideAlternative spelling of dimethyl sulfoxide.dimethyltryptamineAn N-methylated indoleamine derivative, a serotonergic hallucinogen found in several plants, especially Prestonia amazonica (Apocynaceae), and in mammalian brain, blood, and urine.dimethylxanthenone(organic chemistry, medicine) A particular tricyclic analogue of a flavone; its acetic acid derivative shows antineoplastic activitydinitrohalobenzene(organic chemistry) Any dinitro derivative of a halobenzenedinitronaphthalene(organic chemistry) A chemical compound that has two nitro groups on naphthalene.diphenylsilanediol(organic chemistry) The organosilanol (C₆H₅)₂Si(OH)₂diphosphoglycerate(organic chemistry) Synonym of biphosphoglycerate.diphosphohydrolase(biochemistry) Any phosphohydrolase that catalyses the removal of two phosphate groups (typically from a triphosphate)diphosphoinositide(organic chemistry) Any phosphate of phosphatidylinositoldiphyllobothriasis(medicine) infection caused by the tapeworm DiphyllobothriumdiphyllobothriosisAlternative form of diphyllobothriasis.dipiperidylmethane(organic chemistry) A dipiperidyl derivative of methane that is used as a chelating agentdiploinsufficiency(genetics) The state of a diploid organism having only a single copy of a particular gene, the other copy being inactivated due to mutationdipropyltryptamineA particular psychedelic tryptamine drug.disacknowledgementAlternative form of disacknowledgment.disassortativenessThe condition of being disassortativediscombobulatinglySo as to discombobulate; perplexingly.discomfortablenessThe quality of being discomfortable.discriminativenessThe condition of being discriminativedisenfranchisementExplicit or implicit revocation of, or failure to grant, the right to vote, to a person or group of people.disialogangliosideA ganglioside that has two sialic acid residuesdisialotransferrinA transferrin with two sialic acid residues attached.disincentivisationNon-Oxford British English standard spelling of disincentivization.disincentivizationThe provision of a disincentive.dispersionlessnessAbsence of dispersion.dispersoidologicalRelating to dispersoidology.dispersonalizationThe process of dispersonalizing.dispersonificationThe process of dispersonifying.disproportionality(uncountable) The state of being disproportional.disproportionatelyin a disproportionate mannerdisproportionation(chemistry) A form of redox reaction in which part of a reactant is oxidized and part of it is reduced simultaneouslydissyllabification(archaic) A division into two syllables.dissynchronizationThe state or property of being dissynchronized.distinguishabilityThe state of being distinguishable.distortionlessnessAbsence of distortion.disulfitopalladate(inorganic chemistry) A chemical compound containing palladium and two sulfite groups Pd(SO₃)₂, for example potassium disulfitopalladate K₂Pd(SO₃)₂.dithionitrobenzene(organic chemistry) Any of several isomers of the dinitro derivative of diphenyl disulfidedivergencelessnessThe quality of being divergenceless.divertissementlike(rare) Resembling or characteristic of a divertissement.dodecadepsipeptide(organic chemistry) An oligomeric form of depsipeptide composed of twelve monomersdodecadodecahedralHaving the form of a dodecadodecahedron.dodecadodecahedron(geometry) A nonconvex polyhedron with twenty-four faces, thirty vertices, and sixty edges.dodecaploidization(genetics) The process of becoming dodecaploid.dodecylcyclohexane(organic chemistry) A cycloalkane, C₁₈H₃₆ found in petroleum.dolichomacrostomid(zoology) Any member of the Dolichomacrostomidae.dotriacontahectane(organic chemistry) Any of very many isomers of the aliphatic hydrocarbon having one hundred and thirty-two carbon atoms, but especially n-dotriacontahectane CH₃(CH₂)₁₃₀CH₃duodecimarticulate(entomology) Having twelve joints.duodenoenterostomy(surgery) anastomosis of the duodenum to some other part of the small intestineduodenojejunostomy(surgery) A surgical procedure that creates a anastomosis between the duodenum and the jejunum to bypass a blockage or narrowing in the duodenum and restore normal passage of food.dysdiadochocinesiaAlternative form of dysdiadochokinesia.dysdiadochokinesia(neurology) A neurological sign where a person has difficulty performing rapid, alternating movements, usually indicating cerebellar dysfunction.dysdiadochokinesisAlternative form of dysdiadochokinesia.dysdifferentiation(pathology) Incorrect differentiation of cells, typically as a result of ageingdyselectrolytaemiaAlternative form of dyselectrolytemia.dysfibrinogenaemiaAlternative form of dysfibrinogenemia.dysfibrinogenaemicAlternative form of dysfibrinogenemic.dyslipoproteinemia(pathology) Any condition caused by inappropriate amounts or types of lipoprotein in the blooddysplasminogenemia(pathology) A deficiency of plasminogen in the blooddysplasminogenemicRelating to or exhibiting dysplasminogenemia.dysprothrombinemiaThe dysfunction of prothrombin in the blood.dysprothrombinemicRelating to dysprothrombinemia.dysrhythmogenicitySynonym of arrhythmogenicity.dyssynchronizationincorrect synchronizationdystroglycanopathy(pathology) Any disease associated with dystroglycan.

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