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
The cholesterol-lowering benefits of apples come from their soluble fiber (especially pectin) and polyphenols, which reduce cholesterol absorption and support fat (lipid) metabolism.
—
Jamie Johnson, Verywell Health, 7 Oct. 2025
Cloves are especially high in a polyphenol called eugenol, which has powerful anti-inflammatory and pain-relieving properties.
—Jillian Kubala, Health, 7 Oct. 2025
However, when those sulfites are part of real wine, which also contains healthy plant compounds called polyphenols, the effect is much smaller.
—Khloe Quill, FOXNews.com, 5 Oct. 2025
Researchers believed that the diet – rich in antioxidant vitamins, including beta-carotene, vitamin C, and vitamin E, along with polyphenols – could reduce oxidative stress and inflammation in those with the skin condition.
—New Atlas, 28 Sep. 2025
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Jamie Johnson, Verywell Health, 7 Oct. 2025
Cloves are especially high in a polyphenol called eugenol, which has powerful anti-inflammatory and pain-relieving properties.
—Jillian Kubala, Health, 7 Oct. 2025
However, when those sulfites are part of real wine, which also contains healthy plant compounds called polyphenols, the effect is much smaller.
—Khloe Quill, FOXNews.com, 5 Oct. 2025
Researchers believed that the diet – rich in antioxidant vitamins, including beta-carotene, vitamin C, and vitamin E, along with polyphenols – could reduce oxidative stress and inflammation in those with the skin condition.
—New Atlas, 28 Sep. 2025
See All Example Sentences for polyphenol
Cite this Entry
“Polyphenol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyphenol. Accessed 8 Oct. 2025.
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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