flavone noun. ['fleɪvǝʊn] L19.
[from FLAVO- + -ONE.]
A colourless crystalline tricyclic compound, 2-phenylbenzo-1,4-pyrone, C₁₅H₁₀O₂. Also, any derivative of this, many examples of which are yellow plant pigments.

■ flavonoid noun any of a large class of plant pigments having a structure based on or similar to that of flavone, including anthocyanins, anthoxanthins, etc., besides flavones M20.

■ flavonol noun a hydroxy derivative of flavone, 3-hydroxyflavone, C₁₅H₁₀O₃; any derivative of this, many examples of which are yellow plant pigments: L19.

[TahlilGaran] English Dictionary ▲