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 most nutritional ones share two key traits: high polyphenol content and bitterness (yes, bitterness!).
—
Dr. Steven Gundry, CNBC, 25 Apr. 2025
The multitude of flavonoids, polyphenols, and other nutrient components in celery may contribute to lowering overall blood pressure, but the exact mechanisms remain unclear.6
5.
—Hannah Coakley, Msph, Rdn, Verywell Health, 21 Apr. 2025
The theory is that other ingredients in beet juice, like polyphenols—which function as antioxidants—might act synergistically with nitrate to produce a bigger effect.
—Alex Hutchinson, Outside Online, 19 Apr. 2025
Resveratrol, part of a group of compounds called polyphenols, is thought to act like an antioxidant, with sources including the skin of grapes.
—Ryma Chikhoune, WWD, 31 Jan. 2025
See All Example Sentences for polyphenol
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Dr. Steven Gundry, CNBC, 25 Apr. 2025
The multitude of flavonoids, polyphenols, and other nutrient components in celery may contribute to lowering overall blood pressure, but the exact mechanisms remain unclear.6
5.
—Hannah Coakley, Msph, Rdn, Verywell Health, 21 Apr. 2025
The theory is that other ingredients in beet juice, like polyphenols—which function as antioxidants—might act synergistically with nitrate to produce a bigger effect.
—Alex Hutchinson, Outside Online, 19 Apr. 2025
Resveratrol, part of a group of compounds called polyphenols, is thought to act like an antioxidant, with sources including the skin of grapes.
—Ryma Chikhoune, WWD, 31 Jan. 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 2 May. 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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