polyphenol
noun
poly·phe·nol ˌpä-lē-ˈfē-ˌnōl 
-fi-ˈnōl
: a polyhydroxy phenol
especially : an antioxidant phytochemical
polyphenolic
ˌpä-lē-fi-ˈnō-lik -ˈnä-
adjective -ˈnä- 
Example Sentences
Recent Examples on the Web The key ingredient of kakadu plum is potent in vitamin C, vitamin A and polyphenol that work together to brighten, even out tone and protect skin. 
Grooming Playbook, The Salt Lake Tribune, 1 June 2022 This pungent olive oil contains potent polyphenol counts, confirmed by a certificate of analysis that the brand makes publicly available. Zee Krstic, Good Housekeeping, 2 May 2022 The inclusion of resveratrol, a strong polyphenol, prevents your colored hair from fading and also protects your hair from UV rays. Grooming Playbook, The Salt Lake Tribune, 1 June 2022 The water slowed absorption but the polyphenol didn’t. Washington Post, 22 Nov. 2021 One polyphenol only found in extra-virgin olive oil, oleocanthol, is a potent anti-inflammatory shown to help prevent and fight diseases like arthritis and Alzheimer’s. Amanda Ruggeri, Outside Online, 9 Dec. 2014 Avocados also contain polyphenol antioxidants, which protect cells from damage that could lead to heart disease and type 2 diabetes. Cynthia Sass, Mph, Health.com, 10 Feb. 2022 In one study, researchers doctored juice with either extra amounts of the polyphenol (hesperidin) thought to be responsible for slowing glucose absorption, or extra water. Washington Post, 22 Nov. 2021 Resveratrol is a polyphenol, a compound that is chock-full of antioxidants and other benefits. Katie Berohn, Good Housekeeping, 9 Sep. 2021 See More
Grooming Playbook, The Salt Lake Tribune, 1 June 2022 This pungent olive oil contains potent polyphenol counts, confirmed by a certificate of analysis that the brand makes publicly available. Zee Krstic, Good Housekeeping, 2 May 2022 The inclusion of resveratrol, a strong polyphenol, prevents your colored hair from fading and also protects your hair from UV rays. Grooming Playbook, The Salt Lake Tribune, 1 June 2022 The water slowed absorption but the polyphenol didn’t. Washington Post, 22 Nov. 2021 One polyphenol only found in extra-virgin olive oil, oleocanthol, is a potent anti-inflammatory shown to help prevent and fight diseases like arthritis and Alzheimer’s. Amanda Ruggeri, Outside Online, 9 Dec. 2014 Avocados also contain polyphenol antioxidants, which protect cells from damage that could lead to heart disease and type 2 diabetes. Cynthia Sass, Mph, Health.com, 10 Feb. 2022 In one study, researchers doctored juice with either extra amounts of the polyphenol (hesperidin) thought to be responsible for slowing glucose absorption, or extra water. Washington Post, 22 Nov. 2021 Resveratrol is a polyphenol, a compound that is chock-full of antioxidants and other benefits. Katie Berohn, Good Housekeeping, 9 Sep. 2021 See More Word History
Etymology
International Scientific Vocabulary
First Known Use
1894, in the meaning defined above
Medical 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