Quercetin definitions

kwûr'sĭ-tĭn
A yellow powdered crystalline compound, C15 H10 O7 , occurring as a glycoside in the rind and bark of numerous plants or synthesized and thought to have antihistaminic, anti-inflammatory, and antitumor properties.
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The yellow, crystalline dyestuff, C15H10O7, extracted from the inner bark of the black oak and also produced synthetically.
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A yellow flavonol, C15 H10 O7 , found in glycoside form in tea and in many vegetables and fruits. It is an antioxidant and is used as a dietary supplement for its supposed antihistaminic, anti-inflammatory, and antitumor properties.
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(biochemistry) A flavonol found in citrus fruit.
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Origin of quercetin

Latin quercētum oak forest (from quercus oak perkwu- in Indo-European roots) –in

Sentence Examples

  • a-pyrone condenses with the benzene ring to form coumarin and isocoumarin; benzo-'y-pyrone constitutes the nucleus of several vegetable colouring matters (chrysin, fisetin, quercetin, &c., which are derivatives of flavone or phenyl benzo-y-pyrone); dibenzo--ypyrone is known as xanthone; related to this substance are fluorane (and fluorescein), fluorone, fluorime, pyronine, &c. The pyridine ring condenses with the benzene ring to form quinoline and isoquinoline; acridine and phenanthridine are dibenzo-pyridines; naphthalene gives rise to a-and /3-naphthoquinolines and the anthrapyridines; anthracene gives anthraquinoline; while two pyridine nuclei connected by an intermediate benzene nucleus give the phenanthrolines.

  • You can help counter this by giving your son vitamin C, combined with a potent natural antihistamine called Quercetin.

  • Quercetin possesses powerful antioxidant properties and like other bioflavonoids, has the ability to stabilize cell membranes.

  • quercetin glycosides in Psidium guajava L. leaves and determination of a spasmolytic principle.

  • Eat lots of garlic and onion which contain quercetin which is anti-inflammatory.

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Words near quercetin in the Dictionary