flavone

fla·vone

noun \ˈflā-ˌvōn\

Definition of FLAVONE

: 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