quercetin

[ kwur-si-tin ]

noun

, Chemistry.

1. a yellow, crystalline, slightly water-soluble powder, C 1 5 H 1 0 O 7 , obtained from the bark of the quercitron and other vegetable substances, used as a yellow dye; flavin.

quercetin

/ ˈkwɜːsɪtɪn; kwɜːˈsɛtɪk; -ˈsiː- /

noun

1. a yellow crystalline pigment found naturally in the rind and bark of many plants. It is used in medicine to treat fragile capillaries. Formula: C 15 H 10 O 7 ; melting pt: 316–7°C Also calledflavin

Derived Forms

• quercetic, adjective

Other Words From

• quer·cet·ic [kwer-, set, -ik, -, see, -tik], adjective

Word History and Origins

Origin of quercetin¹

1855–60; < New Latin quercēt ( um ) an oak grove ( Latin querc ( us ) oak ( quercine ) + -ētum suffix of places where a given plant grows) + -in ²

Word History and Origins

Origin of quercetin¹

C19: from Latin quercētum an oak forest (from quercus an oak) + -in

Example Sentences

Apples contain an anti-inflammatory flavonoid called quercetin, while red wine contains the flavonoid catechin.

From The Daily Beast

A very minute proportion of quercetin, a principle yielded by quercitron bark, has been obtained from catechu.

From Project Gutenberg

It contains two coloring principles, quercetrin and quercetin.

From Project Gutenberg