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 There are 7 thirteen-letter words containing H, N, 3O and X| CHEMOTAXONOMY | • chemotaxonomy n. (Biochemistry, genetics) The classification or taxonomy of organisms based on differences and similarities… • CHEMOTAXONOMY n. the classification of plants and animals based on similarities and differences in biochemical composition.
 |  | NONHOMOSEXUAL | • nonhomosexual adj. Not homosexual. • nonhomosexual n. One who is not a homosexual.
 • NONHOMOSEXUAL n. one who is not homosexual.
 |  | NONORTHODOXES | Sorry, definition not available. |  | 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.
 |  | OXYHEMOGLOBIN | • oxyhemoglobin n. (American spelling) Alternative form of oxyhaemoglobin. • OXYHEMOGLOBIN n. a loose compound of oxygen and haemoglobin, also OXYHAEMOGLOBIN.
 |  | UNORTHODOXIES | • unorthodoxies n. Plural of unorthodoxy. • UNORTHODOXY n. the state of being unorthodox.
 |  | XANTHOCHROOUS | • xanthochroous adj. Yellow‐skinned; of or pertaining to Xanthochroi. • XANTHOCHROOUS adj. exhibiting xanthochroism, a condition in which all pigments other than yellow disappear, also XANTHOCHROIC.
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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: 42 wordsScrabble in French: no wordScrabble in Spanish: no wordScrabble in Italian: no wordScrabble in German: no wordScrabble in Romanian: 1 word
 
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