[pol-ee-fee-nawl, -nol]

noun Chemistry.

a polymeric phenol.

Origin of polyphenol

First recorded in 1895–1900; poly- + phenol
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for polyphenol

Contemporary Examples of polyphenol

  • The answer lies in polyphenol oxidase, an enzyme that combines with oxygen to speed up cellular decomposition.

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    Harvard Students Play With Food

    Laura Colarusso

    December 28, 2010

polyphenol in Science


[pŏl′ē-fēnôl′, -nōl′]

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.