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There are 16 fifteen-letter words containing A, E, 3O, S and 2T

ASTROGEOLOGISTSastrogeologists n. Plural of astrogeologist.
ASTROGEOLOGIST n. a specialist in astrogeology.
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.
CHEMOTAXONOMISTchemotaxonomist n. One who studies chemotaxonomy.
CHEMOTAXONOMIST n. one who practises chemotaxonomy.
COOPERATIONISTSCOOPERATIONIST n. one who believes in cooperation.
CYTOPATHOLOGIEScytopathologies n. Plural of cytopathology.
CYTOPATHOLOGY n. the study of cells in illness.
DEXTROROTATIONSdextrorotations n. Plural of dextrorotation.
DEXTROROTATION n. rotation to the right.
DIAPHOTOTROPIESDIAPHOTOTROPY n. the state of being diaphototropic, turning transversely to the light.
ORTHOGONALITIESorthogonalities n. Plural of orthogonality.
ORTHOGONALITY n. the state of being orthogonal.
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.
PROTOCERATOPSESSorry, definition not available.
STRATOVOLCANOESstratovolcanoes n. Plural of stratovolcano.
STRATOVOLCANO n. a composite volcano, composed of alternating layers of lava and pyroclastic material, along with abundant dikes and sills.
THEOLOGISATIONSTHEOLOGISATION n. the process of theologising, also THEOLOGIZATION.
THEOLOGIZATIONStheologizations n. Plural of theologization.
THEOLOGIZATION n. the process of theologizing, also THEOLOGISATION.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 202 words
  • Scrabble in French: 30 words
  • Scrabble in Spanish: 22 words
  • Scrabble in Italian: 103 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 65 words


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