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Definition of Bixin
1. Noun. (organic compound) An apocarotenoid that is the active ingredient of annatto. ¹
¹ Source: wiktionary.com
Medical Definition of Bixin
1. A monomethyl ester of a 24-carbon branched unsaturated dicarboxylic acid; a carotenoid (a carotene-dioic acid); the orange-red colouring matter from seeds of Bixa orellana; the ethyl ester is used as a food and drug colourant. See: annotto. (05 Mar 2000)