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There are 173 eighteen-letter words containing I, O, 3S and Y

Abyssinian␣primroseangiostrongyliasisantistaphylolysinsapothecaries'␣systemaqueducts␣of␣Sylviusastrogeophysicistsasymptotic␣analysesasymptotic␣analysisautopsychoanalysisbasidiobolomycosisbusiness-to-employeecholecystocentesisChristoffel␣symbolschromoanasynthesischymotrypsinolysiscirculatory␣systemscocrystallisationscommissary␣generalscross-country␣skierscross-country␣skiing cross␣country␣skiingcyberconsciousnesscyberpsychologistscystogastrostomiescystojejunostomiesdamns␣by␣associationdays␣of␣wine␣and␣rosesdesoxyhemigossypoldesynchronisationsdissymmetrizationsdysdiadochokinesisecosystem␣engineerselastophagocytosiseliminatory␣systemsenzymoimmunoassayserythrodysesthesiaesthesiophysiologyethnopsychiatristsethnopsychologistsfield␣sobriety␣testsFinlayson's␣squirrelfluoroimmunoassaysgets␣one's␣hands␣dirtyglycosaminotriosesglycosylglycosidesgoniosynechialysisgoniosynechiolysisGressoney-Saint-Jeanhobbledehoyishnesshyperconsciousnesshyperesponsivenesshyperoestrogenismshypersensitisationhypoaldosteronismshyporesponsivenesshyposensitisationshyposensitizationsinformation␣systemsislands␣of␣stabilitykissing␣goes␣by␣favorkiss␣one's␣ass␣goodbyelipoyltransferasesloses␣one's␣virginityluminoimmunoassayslymphohistocytosislyrical␣dissonanceslysophosphatidateslysophospholipaseslysosphingomyelinsmissionary-linguist missionary␣linguistmissionary␣positionMissouri␣gooseberrymoves␣the␣yardsticksmycobacteriostasisneurocysticercosesneurocysticercosisneurophysiologistsneuropsychiatristsneuropsychologistsnominal␣type␣systemsnonsuppressibilitynot␣while␣pussy's␣a␣catOmphalos␣hypothesison␣a␣case-by-case␣basisopportunity␣classesOppression␣OlympicsopsonophagocytosisorthopsychiatristsPaal-Knorr␣synthesispaedopsychologistsParkinson's␣syndromePatagonia␣cypressespathophysiologistspaying␣one's␣respectspayload␣specialistspersonality␣clashesphosphosensitivityphotoendosomolysisphysiopathogenesisphysiopathologistspolydispersivitiespolysomnographistspostcommissurotomyprotopsychologistspseudoleukocytosispseudopsychologiespseudosynaesthesiapsychoacousticianspsychological␣slipspsychoneurologistspsychopathologistspsychophilosophiespsychophysiologistpsychosociologistspsychostimulationspsychrosensitivitypyrophosphokinasespyrophosphorolysispyrophosphorylysisquasisynchronouslyrecrystallisationsrespiratory␣systemsresynchronisationsribosyltransferasesafety-deposit␣boxesSaint␣Anthony's␣crossscansoriopterygidsschool␣psychologistsecessionisticallysecondary␣emissionssemiprofessionallyshoving␣it␣up␣your␣asssialyllactosaminessix␣bob␣a␣day␣touristsslaty␣bristlefrontssling␣psychrometerssmall␣penis␣syndromesmokestack␣industrysocial␣psychologiessociopsychologistssolitary␣sandpipersspondylodysplasticspondylotherapists

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 519 words
  • Spanish Wiktionary: 1 word
  • Italian Wiktionary: no word
  • German Wiktionary: 30 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 20 words

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