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There are 13 fifteen-letter words containing C, E, H, O, S, 2T and U

AUTHENTICATIONSauthentications n. Plural of authentication.
AUTHENTICATION n. the act of authenticating.
AUTOSCHEDIASTICautoschediastic adj. (Dated) impromptu, improvised, ex tempore or offhand.
AUTOSCHEDIASTIC adj. impromptu; on the spur of the moment.
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.
ETHNOLINGUISTICethnolinguistic adj. Of or pertaining to ethnolinguistics.
ethnolinguistic adj. (Anthropology) Associated with a particular ethnicity and a particular variety of language.
ETHNOLINGUISTIC adj. pertaining to the study of the relationship between language and cultural behaviour.
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.
NUCLEOSYNTHETICnucleosynthetic adj. Of or pertaining to nucleosynthesis.
NUCLEOSYNTHETIC adj. relating to nucleosynthesis.
PHOTODUPLICATESphotoduplicates n. Plural of photoduplicate.
PHOTODUPLICATE v. to duplicate by photocopier.
PHOTOREDUCTIONSphotoreductions n. Plural of photoreduction.
PHOTOREDUCTION n. chemical reduction under the influence of radiant energy, as light.
PITHECANTHROPUSPithecanthropus prop.n. A former taxonomic genus in the family Hominidae, whose species are now assigned to the genus Homo…
PITHECANTHROPUS n. any of several primitive extinct men from Java.
TECHNOSTRUCTUREtechnostructure n. A corporate structure including technicians or other skilled professionals.
TECHNOSTRUCTURE n. the network of professionally skilled managers (as scientists, engineers, and administrators) that tends to control the economy both within and beyond individual corporate groups.
THERMOJUNCTIONSthermojunctions n. Plural of thermojunction.
THERMOJUNCTION n. a junction of two dissimilar conductors used to produce a thermoelectric current.
UNSOPHISTICATEDunsophisticated adj. Not sophisticated; lacking sophistication.
UNSOPHISTICATED adj. not sophisticated.

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: 152 words
  • Scrabble in French: 32 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 25 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 6 words


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