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 There are 16 fifteen-letter words containing A, E, 3O, S and 2T| ASTROGEOLOGISTS | • astrogeologists n. Plural of astrogeologist. • ASTROGEOLOGIST n. a specialist in astrogeology.
 |  | CHEMOAUTOTROPHS | • chemoautotrophs 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.
 |  | CHEMOTAXONOMIST | • chemotaxonomist n. One who studies chemotaxonomy. • CHEMOTAXONOMIST n. one who practises chemotaxonomy.
 |  | COOPERATIONISTS | • COOPERATIONIST n. one who believes in cooperation. |  | CYTOPATHOLOGIES | • cytopathologies n. Plural of cytopathology. • CYTOPATHOLOGY n. the study of cells in illness.
 |  | DEXTROROTATIONS | • dextrorotations n. Plural of dextrorotation. • DEXTROROTATION n. rotation to the right.
 |  | DIAPHOTOTROPIES | • DIAPHOTOTROPY n. the state of being diaphototropic, turning transversely to the light. |  | ORTHOGONALITIES | • orthogonalities n. Plural of orthogonality. • ORTHOGONALITY n. the state of being orthogonal.
 |  | ORTHOPHOSPHATES | • orthophosphates n. Plural of orthophosphate. • ORTHOPHOSPHATE n. a salt or ester of orthophosphoric acid.
 |  | PALAEONTOLOGIST | • palaeontologist n. Alternative spelling of paleontologist. • palæontologist n. Alternative spelling of paleontologist.
 • PALAEONTOLOGIST n. a student of palaeontology, also PALEONTOLOGIST.
 |  | PALEONTOLOGISTS | • paleontologists n. Plural of paleontologist. • PALEONTOLOGIST n. one who studies paleontology, also PALAEONTOLOGIST.
 |  | PHOTODISSOCIATE | • photodissociate v. To cause, or to undergo photodissociation. • PHOTODISSOCIATE v. to effect photodissociation, dissociation produced by the absorption of radiant energy.
 |  | PROTOCERATOPSES | Sorry, definition not available. |  | STRATOVOLCANOES | • stratovolcanoes n. Plural of stratovolcano. • STRATOVOLCANO n. a composite volcano, composed of alternating layers of lava and pyroclastic material, along with abundant dikes and sills.
 |  | THEOLOGISATIONS | • THEOLOGISATION n. the process of theologising, also THEOLOGIZATION. |  | THEOLOGIZATIONS | • theologizations n. Plural of theologization. • THEOLOGIZATION n. the process of theologizing, also THEOLOGISATION.
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 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.
 
 See this list for:English Wiktionary: 202 wordsScrabble in French: 30 wordsScrabble in Spanish: 22 wordsScrabble in Italian: 103 wordsScrabble in German: no wordScrabble in Romanian: 65 words
 
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