\Gal"lic\, a. [From {Gallium}.] (Chem.)
Pertaining to, or containing, gallium.

\Gal"lic\ (277), a. [From {Gall} the excrescence.]
Pertaining to, or derived from, galls, nutgalls, and the
like.
{Gallic acid} (Chem.), an organic acid, very widely
   distributed in the vegetable kingdom, being found in the
   free state in galls, tea, etc., and produced artificially.
   It is a white, crystalline substance, {C6H2(HO)3.CO2H},
   with an astringent taste, and is a strong reducing agent,
   as employed in photography. It is usually prepared from
   tannin, and both give a dark color with iron salts,
   forming tannate and gallate of iron, which are the
   essential ingredients of common black ink.

\Gal"lic\, a. [L. Gallicus belonging to the Gauls, fr.
Galli the Gauls, Gallia Gaul, now France: cf. F. gallique.]
Pertaining to Gaul or France; Gallican.