polyphenol
noun
poly·phe·nol
ˌpä-lē-ˈfē-ˌnōl 
-fi-ˈnōl
: a polyhydroxy phenol
especially
: an antioxidant phytochemical
Examples of polyphenol in a Sentence
Recent Examples on the Web
That's because of its high content of catechins, which are polyphenol antioxidants.
—
Angelica Bottaro, Verywell Health, 25 Feb. 2026
Rich in polyphenols, omega fatty acids, and vitamins A and E, these products work to nourish, hydrate and rejuvenate your skin.
—Tory Johnson, ABC News, 24 Feb. 2026
Beans also provide resistant starch and polyphenols, according to Woods.
—Kirsten Nunez, Martha Stewart, 20 Feb. 2026
Olive oil provides heart-healthy monounsaturated fats and powerful polyphenol antioxidants, which can support overall health.
—Jillian Kubala, Health, 20 Feb. 2026
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Angelica Bottaro, Verywell Health, 25 Feb. 2026
Rich in polyphenols, omega fatty acids, and vitamins A and E, these products work to nourish, hydrate and rejuvenate your skin.
—Tory Johnson, ABC News, 24 Feb. 2026
Beans also provide resistant starch and polyphenols, according to Woods.
—Kirsten Nunez, Martha Stewart, 20 Feb. 2026
Olive oil provides heart-healthy monounsaturated fats and powerful polyphenol antioxidants, which can support overall health.
—Jillian Kubala, Health, 20 Feb. 2026
See All Example Sentences for polyphenol
Cite this Entry
“Polyphenol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyphenol. Accessed 28 Feb. 2026.
Copy CitationMedical Definition
polyphenol
noun
poly·phe·nol
ˌpäl-i-ˈfē-ˌnōl, -ˌnȯl, -fi-ˈ
: a polyhydroxy phenol
especially
: an antioxidant phytochemical (as chlorogenic acid) that tends to prevent or neutralize the damaging effects of free radicals
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