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There are 17 fifteen-letter words containing A, E, 3O, P and 2T

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.
CHEMOAUTOTROPHYchemoautotrophy n. (Biology) A mode of growth in which CO2 is the exclusive source of assimilated carbon, and energy is…
CHEMOAUTOTROPHY n. the production of energy by the oxidation of inorganic compounds, such as iron, ammonia and hydrogen sulphide.
COOPERATIONISTSCOOPERATIONIST n. one who believes in cooperation.
CYTOPATHOLOGIEScytopathologies n. Plural of cytopathology.
CYTOPATHOLOGY n. the study of cells in illness.
DIAPHOTOTROPIESDIAPHOTOTROPY n. the state of being diaphototropic, turning transversely to the light.
ELECTROPORATIONelectroporation n. (Biotechnology) the creation of transient pores in the cell membrane, through the application of a high-voltage…
NONEXPLOITATIONnonexploitation n. Absence of exploitation.
NONEXPLOITATION adj. not exploitation.
NONMETROPOLITANnonmetropolitan adj. Not metropolitan.
nonmetropolitan n. One who is not a metropolitan.
non-metropolitan adj. Alternative form of nonmetropolitan.
ORTHOPHOSPHATESorthophosphates n. Plural of orthophosphate.
ORTHOPHOSPHATE n. a salt or ester of orthophosphoric acid.
PALAEONTOLOGISTpalaeontologist n. Alternative spelling of paleontologist.
palæontologist n. Alternative spelling of paleontologist.
PALAEONTOLOGIST n. a student of palaeontology, also PALEONTOLOGIST.
PALEONTOLOGISTSpaleontologists n. Plural of paleontologist.
PALEONTOLOGIST n. one who studies paleontology, also PALAEONTOLOGIST.
PHOTODISSOCIATEphotodissociate v. To cause, or to undergo photodissociation.
PHOTODISSOCIATE v. to effect photodissociation, dissociation produced by the absorption of radiant energy.
PHOTOEXCITATIONphotoexcitation n. (Chemistry) The formation of an excited state by the absorption of a photon.
PHOTOEXCITATION n. the process of exciting the atoms or molecules of a substance by the absorption of radiant energy.
PROPORTIONATELYproportionately adv. In a proportionate manner; with due proportion; proportionally.
PROPORTIONATE adv. in proportion.
PROTOCERATOPSESSorry, definition not available.
RADIOPROTECTIONradioprotection n. Any form of protection against the harmful effects of ionizing radiation, especially caused by natural sources.
RADIOPROTECTION n. protection against the injurious effects of radiation.
UNPROPORTIONATEunproportionate adj. Not proportionate; disproportionate.
UNPROPORTIONATE adj. not proportionate.

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: 194 words
  • Scrabble in French: 26 words
  • Scrabble in Spanish: 13 words
  • Scrabble in Italian: 62 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 69 words


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