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There are 406 eighteen-letter words containing A, D, E, O, S, T and Y

(page 3)

polyphosphorylatedpolypseudorotaxanepolyunsaturated␣fatpostdepositionallypostpericardiotomypotassium␣hydroxidepredispositionallyprobability␣densityprotocycloceratidsprotodesilylationsprotoplanetary␣discprotoplanetary␣diskpseudoanaphylacticpseudocompensatorypseudoetymologicalpseudogynecomastiapseudoheritabilitypseudohyponatremiapseudometallophytepseudometaphysicalpseudomythologicalpseudophylactocarppseudopolycythemiapseudopsychopathicpseudosynaesthesiapseudouridylationspsychodermatologicpsychopathologizedpyrophosphorylatedquasithermodynamicradiation␣chemistryradiosynovectomiesRamsay␣Hunt␣syndromerape␣trauma␣syndromereductionisticallyresolution␣advisoryreticulated␣pythonsrumination␣syndromeSabbath-day's␣journeysafety-deposit␣boxesSandmeyer␣reactionsscansoriopterygidsscimitar-horned␣oryxsecondary␣educationsecondary␣infectionsecondary␣intentionsecondary␣liabilitysecondary␣predationsecondary␣structuresedimentologicallysee␣you␣next␣Thursdayserodiagnosticallysialoglycopeptidessialylglycopeptideskinny␣drink␣of␣watersleeping␣dictionarysmokestack␣industrysodicanthophyllitesoftware␣deploymentsolitary␣sandpipersSouthwick␣and␣Widleyspace-cadet␣keyboardspondylarthritidesspondylomyelopathyspondylotherapistsspotted␣flycatchersstakeholder␣societystandard␣of␣identitystanding␣on␣ceremonystand␣on␣one's␣dignitySt␣Totteringham's␣Daystylohyoid␣ligamentsulfametoxydiazinesummability␣methodsSunnyside-Tahoe␣Citysuperextraordinarysympathetic␣powderssympathoadrenergicsynaptodendrosomalsynaptodendrosomestakes␣a␣ride␣to␣Tyburntaurodeoxycholatestetrahydrocortisoltetrahydropyrrolestetranary␣compoundsthalassochelydiansthermodynamic␣statethiophosphorylatedthoughts␣and␣prayersthousand-yard␣staresthousand-year-old␣eggthree-dimensionallytight␣pants␣syndrometime␣and␣motion␣studytoey␣as␣a␣Roman␣sandaltotally␣ordered␣setstrack␣and␣bowl␣systemtransendotheliallytransfructosylatedtranshydrogenation trans-hydrogenationtrihexosylceramideunderglycolysationunderglycosylationValentino's␣syndromevasoepididymostomyvolcanosedimentarywave␣the␣bloody␣shirtWestmoreland␣CountyWeston␣under␣Penyardwhen␣two␣Sundays␣meetwhite␣carbohydrateswoodland␣strawberryyellow-breasted␣chatyellow␣dog␣contractsyellow␣dog␣Democrats Yellow␣Dog␣Democratszygomaticosphenoid

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 318 words
  • Spanish Wiktionary: 2 words
  • Italian Wiktionary: no word
  • German Wiktionary: 26 words
  • Portuguese Wiktionary: 1 word
  • Dutch Wiktionary: 19 words

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