| gallic | <chemistry> Pertaining to, or containing, gallium. Origin: From Gallium. Pertaining to, or derived from, galls, nutgalls, and the like. <chemistry> Gallic acid, 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, 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 colour with iron salts, forming tannate and gallate of iron, which are the essential ingredients of common black ink. Structure: C6H2(HO)3.CO2H Origin: From Gall the excrescence. Source: Websters Dictionary (01 Mar 1998) |
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| gallic acid | <chemical> Chemical name: Benzoic acid, 3,4,5-trihydroxy- (12 Dec 1998) |
| gallicanism | The principles, tendencies, or action of those, within the Roman Catholic Church in France, who (especially. In 1682) sought to restrict the papal authority in that country and increase the power of the national church. Source: Websters Dictionary (01 Mar 1998) |