Definition of gallic acid in English:

gallic acid

Pronunciation: /ˈɡôlik//ˈɡalik/

noun

Chemistry
  • An acid extracted from oak galls and other vegetable products, formerly used in making ink.

    • ‘Pyrogallol, tannic acid, and gallic acid were obtained from Zhunyi Reagents (Guizou, China).’
    • ‘By washing the paper with a solution of gallic acid after the exposure, he produced a developed-out image.’
    • ‘The paper was then treated with gallic acid and then silver nitrate again.’
    • ‘Then, the paper is floated on a mixture containing silver nitrate and gallic acid.’
    • ‘Modern compositions use other unstable, albeit somewhat less hazardous, aromatic compounds such as gallic acid or the salts of aromatic acids including sodium salicylate and potassium benzoate.’

Origin

Late 18th century: gallic from Latin galla oak gall (see gall) + -ic.

Pronunciation:

gallic acid

/ˈɡôlik//ˈɡalik/