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There are 67 eighteen-letter words containing 2H, O, P and 3S

aphthous␣stomatitisBaldwin's␣phosphorusBasque␣Shepherd␣Dogscenesthesiopathieschildren's␣hospitalsdon't␣spare␣the␣horsesesthesiophysiologyethnopsychiatristsethnopsychologistsHittorf's␣phosphorusHomberg's␣phosphorushorseshoe␣up␣one's␣asskeeps␣one's␣mouth␣shutlymphohistocytosislysophosphatidateslysophospholipasesmonophosphokinasesnucleophosphatasesOmphalos␣hypothesisorganophosphatasesorthophasmavirusesorthopsychiatristspathophysiologistspentakisphosphatesphilosopher's␣stones philosophers'␣stonesphilosophunculistsphosphodiesterasesphosphohexomutasesphosphoisoprenoidsphosphonucleosidesphosphoribomutasesphosphorrössleritephosphorus␣necrosisphosphosaccharidesphosphosensitivityphosphotransferasephosphotriesterasephysiopathogenesisphysiopathologistspseudophilosopherspseudophilosophiespseudophosphatasespseudophotospherespseudo-scholarshipspsychopathologistspsychophilosophiespsychophysiologistpyrophosphokinasespyrophosphorolysispyrophosphorylasespyrophosphorylysespyrophosphorylysisschool␣psychologistseismic␣lithosphereseismochronographssemiphosphorescentShaughnessy␣playoffsheltered␣workshopsspeech␣pathologistsspirits␣of␣hartshornspurious␣diphthongssymphony␣orchestrastetrakisphosphatesthalassotherapiststhrowing␣some␣shapestransphosphorylase

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 131 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 35 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 7 words

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