polyphenol

American  

[pol-ee-fee-nawl, -nol] / ˌpɒl iˈfi nɔl, -nɒl /

noun

1. Chemistry. a polymeric phenol.

2. Biochemistry. any of a group of naturally occurring compounds found significantly in fruits, vegetables, cereals, coffee, tea, and wine, and widely studied for properties believed to promote health and fight disease.

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polyphenol Scientific  

/ pŏl′ē-fē′nôl′,-nōl′ /

1. Any of various alcohols containing two or more benzene rings that each have at least one hydroxyl group (OH) attached. Many polyphenols occur naturally in plants and some kinds, such as the flavonoids and tannins, are believed to be beneficial to health.

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Etymology

Origin of polyphenol

First recorded in 1895–1900; poly- + phenol

Example Sentences

See Examples For:

polyphenol

Although the researchers have not yet directly compared the modified plants with conventional green lettuce varieties, red lettuce is already known for its high level of polyphenol production.

From Science Daily ● Jun. 15, 2026

The red color of red leaf lettuce comes from anthocyanins, a group of polyphenol pigments that have attracted attention for their antioxidant properties.

From Science Daily ● Jun. 15, 2026

Therefore, machine learning was able to accurately estimate important indices for evaluating spice extracts, including the total polyphenol content, total flavonoid content, antioxidant capacity, and reducing capacity.

From Science Daily ● Jan. 9, 2024

A: Extra-virgin olive oil contains polyphenol compounds that may contribute to the health benefits it offers as well as to the flavor experienced cooks prize.

From Seattle Times ● Jun. 28, 2023

The water slowed absorption but the polyphenol didn’t.

From Washington Post ● Nov. 22, 2021