Glycolic acid(Chem.), an organic acid, found naturally in unripe grapes and in the leaves of the wild grape and produced artificially in many ways, as by the oxidation of glycol, — whence its name. It is a sirupy, or white crystalline, substance, HO.CH2.CO2H, has the properties both of an alcohol and an acid, and is a type of the hydroxy acids; — called also hydroxyacetic acid.

(Gly"co*lide) n. [Glycol + anhydride.] (Chem.) A white amorphous powder, C4H4O, obtained by heating and dehydrating glycolic acid. [Written also glycollide.]

(Gly`co*lu"ric) a. [Glycol + uric.] (Chem.) Pertaining to, derived from, glycol and urea; as, glycoluric acid, which is called also hydantoic acid.

(Gly`co*lu"ril) n. [Glycolyl + uric.] (Chem.) A white, crystalline, nitrogenous substance, obtained by the reduction of allantoïn.

(Gly"co*lyl) n. [Glycolic + -yl.] (Chem.) A divalent, compound radical, CO.CH2, regarded as the essential radical of glycolic acid, and a large series of related compounds.

(Gly*co"ni*an) a. & n. Glyconic.

(Gly*con"ic) a. [Gr. a kind of verse, so called from its inventor, Glycon.] (Pros.) Consisting of a spondee, a choriamb, and a pyrrhic; — applied to a kind of verse in Greek and Latin poetry.n. (Pros.) A glyconic verse.

(Gly"co*nin) n. An emulsion of glycerin and the yolk of eggs, used as an ointment, as a vehicle for medicines, etc.

(Gly"co*sine) n. (Chem.) An organic base, C6H6N4, produced artificially as a white, crystalline powder, by the action of ammonia on glyoxal.

(||Gly`co*su"ri*a) n. (Med.) Same as Glucosuria.

(||Glyc`yr*rhi"za) n. [L., fr. Gr. sweet + root. Cf. Licorice.]

1. (Bot.) A genus of papilionaceous herbaceous plants, one species of which is the licorice plant, the roots of which have a bittersweet mucilaginous taste.

2. (Med.) The root of Glycyrrhiza glabra used as a demulcent, etc.

(Glyc`yr*rhi*zim"ic) a. (Chem.) From, or pertaining to, glycyrrhizin; as, glycyrrhizimic acid.

(Gly*cyr"rhi*zin) n. [Cf. F. glycyrrhizine. See Glycyrrhiza.] (Chem.) A glucoside found in licorice root in monesia bark in the root of the walnut, etc., and extracted as a yellow, amorphous powder, of a bittersweet taste.

(Gly"col) n. [Glycerin + - ol. See Glycerin.] (Chem.) (a) 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. (b) Any one of the large class of diacid alcohols, of which glycol proper is the type.

(Gly*col"ic) a. (Chem.) Pertaining to, or derived from, glycol; as, glycolic ether; glycolic acid.

  By PanEris using Melati.

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