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A thick, colorless liquid, C2H4(OH)2, of a sweetish taste, produced artificially from certain ethylene compounds. It is a diacid alcohol, intermediate between ordinary ethyl alcohol and glycerin.

Pertaining to, or derived from, glycol; as, glycolic ether; glycolic acid. Glycolic acid (Chem.), an organic acid, found naturally in unripe grapes and in the leaves of the wild grape (Ampelopsis quinquefolia), and produced artificially in many ways, as by the oxidation of glycol, -- whence its name. It is a sirupy, or…

A white amorphous powder, C4H4O, obtained by heating and dehydrating glycolic acid. [Written also glycollide.]

Pertaining to, derived from, glycol and urea; as, glycoluric acid, which is called also hydantoic acid.

A white, crystalline, nitrogenous substance, obtained by the reduction of allantoïn.

A divalent, compound radical, CO.CH2, regarded as the essential radical of glycolic acid, and a large series of related compounds.

A colorless liquid, C7H8O2, with a peculiar odor. It is the methyl ether of pyrocatechin, and is obtained by distilling guaiacum from wood-tar creosote, and in other ways. It has been used in treating pulmonary tuberculosis.

A colorless liquid, C6H4,OCH3.OH, resembling the phenols, found as a constituent of woodtar creosote, aud produced by the dry distillation of guaiac resin.

Of or pertaining to gynecology.

The science which treats of the structure and diseases of women. -- Gyn`e*col"o*gist.

See Semiglutin.

The science which treats of the complex relations of living creatures to other organisms, and to their surrounding conditions generally. St. George Mivart.

Having a strong, deep, or glaring color; flushed. Shak.

Fish glue; isinglass; a glue prepared from the sounds of certain fishes.

A worshiper of fire. [R.]

Pertaining to the ileum and colon; as, the ileocolic, or ileocæcal, valve, a valve where the ileum opens into the large intestine.

Safety; security. [Obs.] Howell.

A variety of tourmaline of an indigo-blue color.

Existing or carried on between colleges or universities; as, intercollegiate relations, rivalry, games, etc.

Situated between hills; -- applied especially to valleys lying between volcanic cones.