gallic acid

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noun Chemistry.

a white or yellowish, crystalline, sparingly water-soluble solid, C7H6O5, obtained from nutgalls, used chiefly in tanning and in ink dyes.

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Origin of gallic acid

First recorded in 1785–95, gallic acid is from French acide gallique

Words nearby gallic acid

Gallia, galliambic, Galliano, galliard, gallic, gallic acid, Gallican, Gallicanism, Gallice, Gallicism, Gallicize

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use gallic acid in a sentence

A mixture of the two esters melted within the limits given for the ester of gallic acid.
Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron)|William Anderson Syme
The melting point behavior of the acid corresponds with that of gallic acid; it melted with decomposition at about 230°.
Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron)|William Anderson Syme
While the tests leading to the identification of gallic acid were being made, another series of experiments was in progress.
Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron)|William Anderson Syme
For the sake of comparison, an ester was made from gallic acid obtained from another source and the two agreed in properties.
Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron)|William Anderson Syme

All appeared to be impure gallic acid which had become brown by absorption of oxygen.
Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron)|William Anderson Syme

British Dictionary definitions for gallic acid

gallic acid

noun

a colourless crystalline compound obtained from tannin: used as a tanning agent and in making inks, paper, and pyrogallol; 3,4,5-trihydroxybenzoic acid. Formula: C 6 H 2 (OH) 3 COOH

Word Origin for gallic acid

C18: from French gallique; see gall ³

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012