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[kwur-si-tin] /ˈkwɜr sɪ tɪn/
noun, Chemistry.
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.
Also called meletin.
Origin of quercetin
1855-60; < New Latin quercēt(um) an oak grove (Latin querc(us) oak (see quercine) + -ētum suffix of places where a given plant grows) + -in2
Related forms
[kwer-set-ik, -see-tik] /kwərˈsɛt ɪk, -ˈsi tɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for quercetin


a yellow crystalline pigment found naturally in the rind and bark of many plants. It is used in medicine to treat fragile capillaries. Formula: C15H10O7; melting pt: 316–7°C Also called flavin
Derived Forms
quercetic (kwɜːˈsɛtɪk; -ˈsiː-) adjective
Word Origin
C19: from Latin quercētum an oak forest (from quercus an oak) + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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quercetin in Medicine

quercetin quer·ce·tin (kwûr'sĭ-tĭn)
A yellow powdered crystalline compound produced synthetically or occurring as a glycoside in the rind and bark of numerous plants, used medicinally to treat abnormal capillary fragility. Also called meletin.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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