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There are 67 eighteen-letter words containing A, C, D, 2H, O and Y

ad-hoc␣polymorphismsalphacetylmethadolanhydrosaccharidesaspidorhynchiformsBeals-Hecht␣syndromecardiosphygmographchenodeoxycholatesChicago-style␣hot␣dogchloroacetaldehydechlorobenzaldehydechlorohydrocarbonschondrodystrophiaschondromesenchymalcyclodecaphosphate cyclo-decaphosphatecyclodiphosphazenedecachlorobiphenyldehydrochlorinasesdehydrochlorinateddihydroanthracenesdihydrotachysteroldihydroxychalconesdiphosphoglycerateglycerophosphatideheavy␣goods␣vehiclesheavy␣marching␣orderhermaphroditicallyhexadecyloxymethylhomopolysaccharidehow␣much␣do␣you␣chargehydrencephaloceleshydrochlorinationshydroencephalocelehydrogeochemicallyhydromorphologicalhydrostratigraphichydrosulphuric␣acidhydroxyhalolactonehypersophisticatedhypidiomorphicallyhypochondroplasiashypochondroplastichypophosphoric␣acidhyposulphurous␣acidLesch-Nyhan␣syndromemacropetalichthyidpachycephalosauridpachychoroidopathypachyrhizodontoidspalaeohydrographicPhiladelphia␣Countyphosphorocyanidatephosphorylceramidepolyhydric␣alcoholspolyphosphoric␣acidpseudopsychopathicpsychopathologizedpyrophosphoric␣acidsecondary␣phosphinesodicanthophyllitesulphonic␣anhydridetetrahydrochloridethalassochelydiansthermohydrodynamicthiocarbohydrazideThrowback␣Thursdayswhite␣carbohydrates

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 14 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 2 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 2 words

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