: an isoflavone C15H10O4 found chiefly in legumes and especially soybeans

Examples of daidzein in a Sentence

Recent Examples on the Web
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According to Harvard Medical School data, a compound found in soy called daidzein converts to the chemical equol in your intestines. — Lisa Mulcahy, Good Housekeeping, 2 May 2022 Soybeans are high in fiber, as well as compounds called isoflavones, which include daidzein and genistein. — Maggie Fox, NBC News, 30 Oct. 2017

Word History

Etymology

International Scientific Vocabulary, alteration of daidzin, substance from which daidzein is derived, from daidz- (from Japanese daizu soybean) + -in entry 1

First Known Use

1945, in the meaning defined above

Time Traveler
The first known use of daidzein was in 1945

Browse Nearby Words

Cite this Entry

“Daidzein.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/daidzein. Accessed 4 Oct. 2026.

Medical Definition

: an isoflavone C15H10O4 found chiefly in legumes and especially soybeans
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