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There are 377 eighteen-letter words containing 2H, 2O, P, S and T

(page 3)

rheoplethysmographRichmond␣upon␣Thamesschool␣psychologistsemiphosphorescentsheltered␣workshopsshit␣or␣get␣off␣the␣potshooting␣from␣the␣hipshooting␣from␣the␣lipshotgun␣microphonessodicanthophyllitesodium␣hypochloritesodiumthiosulphate sodium␣thiosulphatespectrodichrographspectroheliographsspectroheliographyspectrophotographsspectrophotographyspeech␣pathologistssphingophosphatidespirits␣of␣hartshornspondylarthropathyspurious␣diphthongsstereolithographicstereophotographerstereophotographicstraight␣apostrophesulphochlorinationsulphur-bottom␣whale sulphur␣bottom␣whalesympathochromaffinsympathoinhibitionsympathoinhibitorssympathoinhibitorysymphony␣orchestrassynchiotrophoblasttechnophilosophiestephrochronologisttetrachlorophenolstetrathiophosphatetheophilanthropismtheophilanthropistthermal␣horsepowersthermophysiologiesthermosalinographsthiophosphoric␣acidthiophosphorylatedthiopyrophosphatesThird␣Epistle␣of␣Johnthird-person␣shooterthreshold␣potentialthrombelastographsthrombelastographythrombocytopathiesthromboelastographthrombophlebitidesthromboprophylaxesthromboprophylaxisthrowing␣some␣shapestracheooesophageal tracheo-oesophagealtransphosphorylasetransphosphorylatetrash␣heap␣of␣historytrichlorobiphenylstrichlorodiphenylstrichoepitheliomastriphosphoric␣acidstriphosphorylationtrips␣to␣the␣woodshedUhthoff's␣phenomenonunphosphorylatablevideo␣photographerswho's␣a␣pretty␣boy␣thenwolframophosphateszosterophyllophyte

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 275 words
  • Spanish Wiktionary: 1 word
  • Italian Wiktionary: no word
  • German Wiktionary: 55 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 12 words

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