Part 536

Gly"co*cin (?), n. [Glycocoll + -in.] (Physiol. Chem.) Same as Glycocoll.

Gly"co*coll (?), n. [Gr. glyky`s sweet + ko`lla glue.] (Physiol. Chem.) A crystalline, nitrogenous substance, with a sweet taste, formed from hippuric acid by boiling with hydrochloric acid, and present in bile united with cholic acid. It is also formed from gelatin by decomposition with acids. Chemically, it is amido-acetic acid. Called also glycin, and glycocin.

Gly"co*gen (?), n. [Gr. &?; sweet + -gen: cf. F. glycogËne.] (Physiol. Chem.) A white, amorphous, tasteless substance resembling starch, soluble in water to an opalescent fluid. It is found abundantly in the liver of most animals, and in small quantity in other organs and tissues, particularly in the embryo. It is quickly changed into sugar when boiled with dilute sulphuric or hydrochloric acid, and also by the action of amylolytic ferments.

Gly`co*gen"ic (?), a. Pertaining to, or caused by, glycogen; as, the glycogenic function of the liver.

{ Gly*cog"e*ny (?), Gly`co*gen"e*sis (?), } n. (Physiol.) The production or formation of sugar from gycogen, as in the liver.

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.

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 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 allantoÔn.

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 (G. glabra), is the licorice plant, the roots of which have a bittersweet mucilaginous taste.

2. (Med.) The root of Glycyrrhiza glabra (liquorice root), 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 (Glycyrrhiza), in monesia bark (Chrysophyllum), in the root of the walnut, etc., and extracted as a yellow, amorphous powder, of a bittersweet taste.

{ Glyn, Glynne } (?), n. A glen. See Glen. [Obs. singly, but occurring often in locative names in Ireland, as Glen does in Scotland.]

He could not beat out the Irish, yet he did shut them up within those narrow corners and glyns under the mountain's foot.

Spenser.

Gly*ox"al (?), n. [Glycol + oxalic + aldehyde.] (Chem.) A white, amorphous, deliquescent powder, (CO.H)2, obtained by the partial oxidation of glycol. It is a double aldehyde, between glycol and oxalic acid.

Gly`ox*al"ic (?), a. (Chem.) Pertaining to, or designating, an aldehyde acid, intermediate between glycol and oxalic acid. [Written also glyoxylic.]

Gly*ox"a*line (?), n. (Chem.) A white, crystalline, organic base, C3H4N2, produced by the action of ammonia on glyoxal, and forming the origin of a large class of derivatives hence, any one of the series of which glyoxaline is a type; -- called also oxaline.