gallic acid

English

Noun

gallic acid (uncountable)

  1. (organic chemistry) a phenolic carboxylic acid, 3,4,5-trihydroxybenzoic acid, found in galls, tea, the bark of some trees etc; a constituent of tannin
  2. (inorganic chemistry) the supposed acid H3GaO3, the acid form of the amphoteric gallium hydroxide Ga(OH)3, known only as alkali metal salts

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