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 There are 2 thirteen-letter words containing H, 3O, P, T, X and Y| ORTHOPYROXENE | • orthopyroxene n. (Mineralogy) Any pyroxene that forms orthorhombic crystals. • ORTHOPYROXENE n. a member of the pyroxene group of minerals having an orthorhombic crystal structure, such as enstatite and hypersthene.
 |  | PHOTOTOXICITY | • phototoxicity n. Any adverse effect due to exposure to light, especially such effects on the skin. • PHOTOTOXICITY n. the state of being phototoxic.
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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: 8 wordsScrabble in French: no wordScrabble in Spanish: no wordScrabble in Italian: no wordScrabble in German: no wordScrabble in Romanian: no word
 
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