isoflavone

noun

iso·​fla·​vone ˌī-sō-ˈflā-ˌvōn How to pronounce isoflavone (audio)
: a colorless, crystalline, bioactive ketone C15H10O2
also : any of various usually hydroxyl derivatives of isoflavone (such as genistein and daidzein) that are plant compounds possessing antioxidant and estrogenic activity in the body

Examples of isoflavone in a Sentence

Recent Examples on the Web Food sources of soy don’t contain high enough levels of isoflavones to increase breast cancer risk. Scott Lafee, San Diego Union-Tribune, 28 Nov. 2023 Red clover extract contains a type of natural compound known as isoflavones. Amber Smith, Discover Magazine, 5 Oct. 2023 Rich in isoflavones, another phytoestrogen, soy (think tempeh, tofu and edamame) should appear on your shopping list too. Georgia Day, Vogue, 6 Sep. 2023 Soy contains isoflavones, endocrine disruptors that mimic and interfere with human estrogen. Madeleine Watts, Harper's Magazine, 11 May 2022 And foods like beans, legumes and soy products are rich sources of subtype isoflavones − flavonoids that help keep one's hormones balanced. Daryl Austin, USA TODAY, 25 May 2023 The Impossible Burger's isoflavone content is under 2 mg, which is less than some standard dosages recommended for transgender hormone therapy. Miriam Fauzia, USA TODAY, 10 Sep. 2021 To date, there has been no evidence linking soy or isoflavone consumption with feminizing males or affecting childhood development. Miriam Fauzia, USA TODAY, 10 Sep. 2021 Then there are the studies that have looked into whether isoflavones can feminize men and infants and interfere with fertility and development. Beth Mole, Ars Technica, 27 Dec. 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'isoflavone.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1926, in the meaning defined above

Time Traveler
The first known use of isoflavone was in 1926

Dictionary Entries Near isoflavone

Cite this Entry

“Isoflavone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isoflavone. Accessed 24 Apr. 2024.

Medical Definition

isoflavone

noun
iso·​fla·​vone -ˈflā-ˌvōn How to pronounce isoflavone (audio)
: a bioactive ketone C15H10O2 noted for its numerous derivatives that are found in plants (as the soybean) and have antioxidant and estrogenic activity
also : any of these derivatives (as daidzein or genistein)

More from Merriam-Webster on isoflavone

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!