Definitions for "Polyphenol"
Polymers formed from repeating structures of simpler monophenols or flavanoids. These large compounds (such as tannins) are the primary culprits for astringent and bitter flavors and also for haze formation.
is a phenol compound with more than one -OH group attached to the unsaturated ring of carbon atoms; some produce bitterness in coffee and tea.
Any of a class of aromatic organic compounds comprised of more than one hydroxyl group (-OH) attached directly to a benzene ring