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 .
 
 
 
Similar sounding terms:  fla·vin  fla·vine 
 
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