1. A plant pigment that is the basis of the flavonoids; it is a potent inhibitor of prostaglandin biosynthesis. 2. One of a class of compounds based on f. (1).
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fla·vone 'flā-.vōn n a colorless crystalline ketone C15H10O2 found in the leaves, stems, and seed capsules of many primroses also any of the derivatives of this ketone many of which occur as yellow plant pigments in the form of glycosides and are used as dyestuffs
Medical dictionary. 2011.