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
Black tea’s rich polyphenol content—including flavonoids and catechins—contributes to its numerous health benefits by providing powerful antioxidant and anti-inflammatory properties.
—
Amy Brownstein, Ms, Rdn, Verywell Health, 31 Jan. 2025
Rosmarinic acid is a polyphenol compound concentrated in mint plant species.3 Studies show that teas high in rosmarinic acid, like spearmint tea, may help improve symptoms of inflammatory disorders.
—Jillian Kubala, Health, 19 Jan. 2025
These practices can admittedly destroy some of the oil’s naturally beneficial components, too, including antioxidants like polyphenols, and introduce very low levels of some unsupportive compounds, such as trans-fatty acids, Dr. Mozaffarian says.
—Erica Sloan, SELF, 13 Jan. 2025
The seeds are also a good source of polyphenols and antioxidants, including caffeic acid, rosmarinic acid, myricetin, and quercetin, which provide various wellness benefits.18
10.
—Lauren O'Connor, Ms, Health, 22 Jan. 2025
See all Example Sentences for polyphenol 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Amy Brownstein, Ms, Rdn, Verywell Health, 31 Jan. 2025
Rosmarinic acid is a polyphenol compound concentrated in mint plant species.3 Studies show that teas high in rosmarinic acid, like spearmint tea, may help improve symptoms of inflammatory disorders.
—Jillian Kubala, Health, 19 Jan. 2025
These practices can admittedly destroy some of the oil’s naturally beneficial components, too, including antioxidants like polyphenols, and introduce very low levels of some unsupportive compounds, such as trans-fatty acids, Dr. Mozaffarian says.
—Erica Sloan, SELF, 13 Jan. 2025
The seeds are also a good source of polyphenols and antioxidants, including caffeic acid, rosmarinic acid, myricetin, and quercetin, which provide various wellness benefits.18
10.
—Lauren O'Connor, Ms, Health, 22 Jan. 2025
See all Example Sentences for polyphenol
Dictionary Entries Near polyphenol
Cite this Entry
“Polyphenol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyphenol. Accessed 6 Feb. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share