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There are 12 fifteen-letter words containing H, 2O, P, S, 2T and U

CHEMOAUTOTROPHSchemoautotrophs n. Plural of chemoautotroph.
CHEMOAUTOTROPH n. any organism, e.g. bacteria, that produces energy by the oxidation of inorganic compounds, such as iron, ammonia and hydrogen sulphide, also CHEMOAUTROPH.
EPITHELIOMATOUSepitheliomatous adj. Relating to epithelioma.
EPITHELIOMATOUS adj. relating to epithelioma.
EUTROPHICATIONSeutrophications n. Plural of eutrophication.
EUTROPHICATION n. the process of becoming eutrophic.
IMPOSTHUMATIONSimposthumations n. Plural of imposthumation.
IMPOSTHUMATION n. the act of forming an imposthume, an abscess, also IMPOSTUMATION.
OPISTHOGNATHOUSopisthognathous adj. (Zoology) Having retreating jaws or teeth.
OPISTHOGNATHOUS adj. with receding jaws.
PHOTOAUTOTROPHSphotoautotrophs n. Plural of photoautotroph.
PHOTOAUTOTROPH n. an organism capable of synthesizing its own food from inorganic substances using light as an energy source.
PHOTOCONDUCTORSphotoconductors n. Plural of photoconductor.
PHOTOCONDUCTOR n. a photoconductive substance.
PHOTODUPLICATESphotoduplicates n. Plural of photoduplicate.
PHOTODUPLICATE v. to duplicate by photocopier.
PHOTOINDUCTIONSphotoinductions n. Plural of photoinduction.
PHOTOINDUCTION n. induction by the effect of light.
PHOTOJOURNALISTphotojournalist n. A journalist who uses photojournalism.
PHOTOJOURNALIST n. a practitioner of photojournalism.
PHOTOREDUCTIONSphotoreductions n. Plural of photoreduction.
PHOTOREDUCTION n. chemical reduction under the influence of radiant energy, as light.
PROTOSPATHARIUSprotospatharius n. Alternative form of protospatharios.
PROTOSPATHARIUS n. (historical) the captain of the guards at Byzantium, also PROTOSPATAIRE, PROTOSPATHAIRE.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 98 words
  • Scrabble in French: 12 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 1 word
  • Scrabble in German: no word
  • Scrabble in Romanian: 2 words


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