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There are 735 eighteen-letter words containing D, E, H and Y

(page 5)

polyphenoloxidasespolyphenylene␣oxidepolyphosphorylatedpolyvinylchlorides polyvinyl␣chloridespotassium␣hydroxidepseudoanaphylacticpseudoheritabilitypseudoheterozygouspseudohyperkalemiapseudohypertensionpseudohypertrophicpseudohyponatremiapseudomerohedrallypseudometallophytepseudometaphysicalpseudomythologicalpseudoparaphylliumpseudophylactocarppseudopolycythemiapseudopsychologiespseudopsychopathicpseudosynaesthesiapseudoxyrhophiinespsychodermatologicpsychopathologizedpunch␣drunk␣syndromepyrophosphoramidespyrophosphorylatedpyrrolidinophenonequantum␣field␣theoryquasithermodynamicracially␣challengedradiation␣chemistryradiculomyelopathyradiculoneuropathyradiculoplexopathyradioimmunotherapyradiometallographyradiometeorographyrally␣around␣the␣flagRamsay␣Hunt␣syndromeRaynaud's␣phenomenonRed␣Queen␣hypothesisrefreshable␣displayrepeated␣bodily␣harmreticulated␣pythonsrhamnosylglucosiderhamnosylglycosiderides␣the␣cotton␣ponyroller␣sledge␣hockeyrusty␣sheriff's␣badgeRydberg's␣goldenbushRyther␣cum␣OssendykeSabbath-day's␣journeysandplay␣therapistsscheduled␣territorySchnitzler␣syndromescimitar-horned␣oryxsecondary␣phosphineSedgehill␣and␣Semleyseek␣and␣ye␣shall␣findsee␣you␣next␣Thursdayseismocardiographyselling␣by␣the␣candleshaken␣baby␣syndromesialyldisaccharidesodicanthophyllitesodium␣borohydridessodium␣hypochloriteSouthwick␣and␣Widleyspondylarthritidesspondyloepiphysealspondylomyelopathyspondyloperipheralspondylotherapistsspotted␣flycatcherssquashed␣fly␣biscuitstakeholder␣societystaying␣the␣distancesticky␣shed␣syndromeStockholm␣syndromedstrawberry␣aldehydeSt␣Totteringham's␣Daystylohyoid␣ligamentsulfinic␣anhydridessulfobenzaldehydessulfonic␣anhydridessulfonylhydrazonessulphinic␣anhydridesulphonic␣anhydridesulphonylhydrazonesummability␣methodsSunnyside-Tahoe␣Citysympathetic␣powderssympathoadrenergicsynchronized␣clockssynchronized␣diverssynchronized␣divingsynthetic␣divisionssyringohydromyeliataurodeoxycholatesTchebychev␣distancetelehydrobarometertelephone␣directorytenoepiphysiodesistetrahydridoboratetetrahydrochloridetetrahydrocortisoltetrahydropyridinetetrahydropyrrolestetrahydrotriazinetetrahydroxyboratetetraiodothyroninetetrathiomolybdatethalassochelydiansthat␣way␣madness␣liesthermoconductivitythermodynamic␣statethermohydrodynamicthermoinducibilitythermoradiotherapythiocarbohydrazidethiophosphorylatedthoughts␣and␣prayersthousand-yard␣staresthousand-year-old␣eggthree-dimensionallyThunder␣Bay␣Districtthyrohyoid␣membranetight␣pants␣syndrometoothed␣jelly␣fungustoxic␣shock␣syndrometransendotheliallytranshydrogenation trans-hydrogenationtrichlorodiphenylstriethylenediaminetrifluorothymidinetrihexosylceramidetrihydroxybenzenestrihydroxybenzoate

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 603 words
  • Spanish Wiktionary: 2 words
  • Italian Wiktionary: no word
  • German Wiktionary: 90 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 30 words

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