catechin

noun

cat·​e·​chin ˈka-tə-ˌkin How to pronounce catechin (audio)
: a crystalline flavonoid compound C15H14O6 or its derivatives having antioxidant properties and used in dyeing and tanning

Examples of catechin in a Sentence

Recent Examples on the Web
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Green Tea Green tea contains high amounts of antioxidants called catechins. Megan Nunn, Verywell Health, 24 June 2026 Green Tea Green tea contains catechins—plant compounds that may help improve insulin sensitivity. Laura Schober, Health, 12 June 2026 Their research pinpointed the efficacy of antioxidant activity and studied the effects of catechins and resveratrol. Celia Shatzman, Forbes.com, 3 June 2026 See All Example Sentences for catechin

Word History

Etymology

International Scientific Vocabulary catechu + -in entry 1

First Known Use

1853, in the meaning defined above

Time Traveler
The first known use of catechin was in 1853

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Cite this Entry

“Catechin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catechin. Accessed 3 Jul. 2026.

Medical Definition

catechin

noun
cat·​e·​chin ˈkat-ə-ˌkin How to pronounce catechin (audio)
: a crystalline compound C15H14O6 that is related chemically to the flavones, is found in catechu, and is used in dyeing and tanning
also : a derivative of this compound
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