quercetin

noun

quer·​ce·​tin ˈkwər-sə-tən How to pronounce quercetin (audio)
: a yellow crystalline pigment C15H10O7 occurring usually in the form of glycosides in various plants

Examples of quercetin in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Onions Onions contain quercetin, an antioxidant that acts like an antihistamine in the body.6 Antihistamines block histamine, a chemical released during an allergic reaction. Julie Marks, Verywell Health, 19 May 2025 One theory suggests that a flavanol called quercetin, found in higher concentrations in red wines compared to white, may be responsible. Amy McGorry, FOXNews.com, 9 May 2025 Growing methods may play a role Grapes produce quercetin in response to sunlight. Amy McGorry, FOXNews.com, 9 May 2025 This includes quercetin, an antioxidant with immune-supportive and anti-inflammatory properties, and chlorogenic acid, which has been linked to a lower risk of cancer and hypertension.111213 4. Anthea Levi, Health, 5 May 2025 See All Example Sentences for quercetin

Word History

Etymology

International Scientific Vocabulary, from Latin quercetum oak forest, from quercus oak — more at fir

First Known Use

1856, in the meaning defined above

Time Traveler
The first known use of quercetin was in 1856

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Cite this Entry

“Quercetin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quercetin. Accessed 5 Jun. 2025.

Medical Definition

quercetin

noun
quer·​ce·​tin ˈkwər-sət-ən How to pronounce quercetin (audio)
: a yellow crystalline pigment C15H10O7 occurring usually in the form of glycosides in various plants
Last Updated: - Updated example sentences
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