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There are 13 fifteen-letter words containing H, 2O, R, 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.
EUTROPHICATIONSeutrophications n. Plural of eutrophication.
EUTROPHICATION n. the process of becoming eutrophic.
HETERODACTYLOUSheterodactylous adj. (Zoology) Having the first and second toes turned backward, as in the trogons.
HETERODACTYLOUS adj. having the first and second toes turned backwards, as in trogons, and not the first and fourth as in parrots.
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.
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.
REAUTHORISATIONreauthorisation n. Alternative form of reauthorization.
REAUTHORISATION n. the process of reauthorising, also REAUTHORIZATION.
RHEUMATOLOGISTSrheumatologists n. Plural of rheumatologist.
RHEUMATOLOGIST n. one who studies rheumatology.
THERMOJUNCTIONSthermojunctions n. Plural of thermojunction.
THERMOJUNCTION n. a junction of two dissimilar conductors used to produce a thermoelectric current.
TROUBLESHOOTERStroubleshooters n. Plural of troubleshooter.
TROUBLESHOOTER n. a skilled worker employed to locate trouble and make repairs in machinery and technical equipment.
TROUBLESHOOTINGtroubleshooting n. The identification and resolution of problems, especially problems of a technical nature.
troubleshooting v. Present participle of troubleshoot.
TROUBLESHOOT v. to solve problems.

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: 155 words
  • Scrabble in French: 19 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: 2 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 4 words


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