gallic acid

noun Chemistry.

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

Origin of gallic acid

First recorded in 1785–95, gallic acid is from the French word acide gallique Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for gallic acid

gallic acid


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