tannic acid

tan·nic ac·id

T t

Definitions of tannic acid words

noun tannic acid Chemistry. any of a group of astringent vegetable principles or compounds, chiefly complex glucosides of catechol and pyrogallol, as the reddish compound that gives the tanning properties to oak bark or the whitish compound that occurs in large quantities in nutgalls (common tannin, tannic acid) 1
noun tannic acid any of these compounds occurring in wine and imparting an astringent taste, especially in red wine. 1
noun tannic acid bitter substance in tea and wine 1
noun tannic acid a yellowish, astringent substance, C14H10O9, derived from oak bark, gallnuts, etc. and used in tanning hides, in medicine, etc. 0
noun tannic acid any of a number of similar substances 0

before 1830

One of the 36% newest English words

First recorded in 1830-40

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This term is known only to a narrow circle of people with rare knowledge. Only 5% of English native speakers know the meaning of this word.

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