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 There are 6 fifteen-letter words containing H, 3O, T and X| CHEMOTAXONOMIES | • chemotaxonomies n. Plural of chemotaxonomy. • CHEMOTAXONOMY n. the classification of plants and animals based on similarities and differences in biochemical composition.
 |  | CHEMOTAXONOMIST | • chemotaxonomist n. One who studies chemotaxonomy. • CHEMOTAXONOMIST n. one who practises chemotaxonomy.
 |  | PHOTOEXCITATION | • photoexcitation 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.
 |  | PHOTOOXIDATIONS | • photooxidations n. Plural of photooxidation. • PHOTOOXIDATION n. oxidation under the influence of radiant energy, as light.
 |  | PHOTOTOXICITIES | • phototoxicities n. Plural of phototoxicity. • PHOTOTOXICITY n. the state of being phototoxic.
 |  | PHOTOXYLOGRAPHY | • photoxylography n. A process in which a photograph is printed on wood to use as a template for engraving. • PHOTOXYLOGRAPHY n. wood engraving after a photographic impression on a woodblock.
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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 WikWik.org and 1Word.ws.
 
 See this list for:English Wiktionary: 65 wordsScrabble in French: 1 wordScrabble in Spanish: no wordScrabble in Italian: no wordScrabble in German: no wordScrabble in Romanian: 2 words
 
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