isoflavone

noun

iso·​fla·​vone ˌī-sō-ˈflā-ˌvōn 

: 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

Soy products are high in compounds such as isoflavones. —Merve Ceylan, Health, 20 Feb. 2025

Almond milk is low in calories, high in vitamin E, and is often fortified with calcium and vitamin D. Soy milk is full of isoflavones, which have been shown to reduce breast cancer risk, and has an amount of protein comparable to cow’s milk. —Asha Subramanian, Baltimore Sun, 12 Feb. 2025

Soy is a phytoestrogen and the most significant food source of isoflavones (compounds that mimic the structure of estrogen). —Joy Emeh, Health, 10 Feb. 2025

Three common isoflavones include genistein, daidzein, and glycitein.16 Research has examined the effects of isoflavones on postmenopausal bone loss, but study protocols and outcomes have been mixed. —Melissa Nieves, Verywell Health, 30 Jan. 2025

Word History

First Known Use

1926, in the meaning defined above

Rhymes for isoflavone

• aldosterone
• anticyclone
• progesterone
• testosterone
• acetone
• anglophone
• baritone
• bourguignon
• buspirone
• chaperon
• chaperone
• cobblestone

Medical Definition

isoflavone

noun

iso·​fla·​vone -ˈflā-ˌvōn 

: 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)