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flavonol

[fley-vuh-nawl, -nol]
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noun Chemistry.
  1. the 3-hydroxy derivative of flavone, many of whose derivatives, as quercetin, are naturally occurring yellow dyes.
  2. any derivative of this compound.
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Origin of flavonol

First recorded in 1895–1900; flavone + -ol1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for flavonol

flavonol

noun
  1. a flavonoid that occurs in red wine and is said to offer protection against heart disease
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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