[mass noun](Chemistry)a yellow crystalline pigment present in plants, used as a food supplement to reduce allergic responses or boost immunity (化)槲皮苷,栎皮酮
A flavone derivative; chem. formula: C15H10O7 黄酮衍生物;化学分子式:C15H10O7
语源
mid 19th cent.: probably from Latin quercetum 'oak grove' (from quercus 'oak') + -in