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There are 19 fifteen-letter words containing A, 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.
EPITHELIOMATOUSepitheliomatous adj. Relating to epithelioma.
EPITHELIOMATOUS adj. relating to epithelioma.
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.
HETEROSEXUALITYheterosexuality n. The state of being sexually and romantically attracted primarily or exclusively to persons of the opposite sex.
heterosexuality n. Sexual activity with a person of the opposite sex.
HETEROSEXUALITY n. the state of being heterosexual.
PHOTODUPLICATESphotoduplicates n. Plural of photoduplicate.
PHOTODUPLICATE v. to duplicate by photocopier.
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.
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.
SOUTHEASTERLIESsoutheasterlies n. Plural of southeasterly.
south-easterlies n. Plural of south-easterly.
SOUTHEASTERLY n. a wind from the southeast.
SOUTHEASTERNERSsoutheasterners n. Plural of southeasterner.
SOUTHWESTWARDLYsouthwestwardly adv. Toward the southwest.
SOUTHWESTWARDLY adv. in a southwesterly direction.
SUBSTRATOSPHEREsubstratosphere n. The area of the atmosphere directly below the stratosphere.
SUBSTRATOSPHERE n. the area of the atmosphere below the stratosphere.
TELAUTOGRAPHIESTELAUTOGRAPHY n. transmission by use of a Telautograph, a telegraph for reproducing the movement of a pen or pencil and so transmitting writings or drawings.
THAUMATOLATRIESTHAUMATOLATRY n. the worship of miracles or wonders.
THERMOREGULATESthermoregulates v. Third-person singular simple present indicative form of thermoregulate.
THERMOREGULATE v. to regulate by means of heat.
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: 236 words
  • Scrabble in French: 56 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: 15 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 14 words


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