tannic acid

American  

[tan-ik as-id] / ˈtæn ɪk ˈæs ɪd /

noun

Chemistry.

1. a form of tannin with weak acidity, used commercially in dyes and wood stains; corrosion inhibitors; certain antihistamine, antitussive, and antidiarrhea medications; and especially wine, beer, and other beverages that benefit from its clarifying and aroma-enhancing properties: Aleppo galls are among the principal sources of tannic acid.

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tannic acid Scientific  

/ tăn′ĭk /

1. A lustrous, yellow-brown, amorphous substance, having the approximate chemical composition C ₇₆ H ₅₂ O ₄₆. It is derived from the bark and fruit of many plants and is used in tanning leather, in fixing dyes to materials, and in clarifying wine and beer.

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Etymology

Origin of tannic acid

First recorded in 1830–40

Example Sentences

See Examples For:

tannic acid

The team applied metal-polyphenol nano-coating technology based on tannic acid to improve performance and durability.

From Science Daily ● Dec. 2, 2024

Apparently, the tannic acid in the tea helped stop bleeding.

From Seattle Times ● Oct. 25, 2023

The treatment at the time — silver nitrate, opium and tannic acid enemas — destroyed his intestines.

From New York Times ● Nov. 1, 2018

Schulz said, at the time, one of the preferred methods to treat victims was to paint burned areas with tannic acid.

From Seattle Times ● Nov. 27, 2017

There is tannic acid in the woods in oak trees, but it took me several weeks to figure out how to get it.

From "My Side of the Mountain" by Jean Craighead George