Part 532

Glu"cose` (?), n. [Gr. &?; sweet. Cf. Glycerin.]

1. A variety of sugar occurring in nature very abundantly, as in ripe grapes, and in honey, and produced in great quantities from starch, etc., by the action of heat and acids. It is only about half as sweet as cane sugar. Called also dextrose, grape sugar, diabetic sugar, and starch sugar. See Dextrose.

2. (Chem.) Any one of a large class of sugars, isometric with glucose proper, and including levulose, galactose, etc.

3. The trade name of a sirup, obtained as an uncrystallizable reside in the manufacture of glucose proper, and containing, in addition to some dextrose or glucose, also maltose, dextrin, etc. It is used as a cheap adulterant of sirups, beers, etc.

Glu"co*side (?), n. [See Glucose.] (Chem.) One of a large series of amorphous or crystalline substances, occurring very widely distributed in plants, rarely in animals, and regarded as influental agents in the formation and disposition of the sugars. They are frequently of a bitter taste, but, by the action of ferments, or of dilute acids and alkalies, always break down into some characteristic substance (acid, aldehyde, alcohol, phenole, or alkaloid) and glucose (or some other sugar); hence the name. They are of the nature of complex and compound ethers, and ethereal salts of the sugar carbohydrates.

||Glu`co*su"ri*a (?), n. [NL., fr. E. glucose + Gr. &?; urine.] (Med.) ||A condition in which glucose is discharged in the urine; diabetes ||mellitus.

Glue (gl), n. [F. glu, L. glus, akin to gluten, from gluere to draw together. Cf. Gluten.] A hard brittle brownish gelatin, obtained by boiling to a jelly the skins, hoofs, etc., of animals. When gently heated with water, it becomes viscid and tenaceous, and is used as a cement for uniting substances. The name is also given to other adhesive or viscous substances.

Bee glue. See under Bee. -- Fish glue, a strong kind of glue obtained from fish skins and bladders; isinglass. -- Glue plant (Bot.), a fucoid seaweed (Gloiopeltis tenax). -- Liquid glue, a fluid preparation of glue and acetic acid or alcohol. -- Marine glue, a solution of caoutchouc in naphtha, with shellac, used in shipbuilding.

Glue, v. t. [imp. & p. p. Glued (?); p. pr. & vb. n. Gluing.] [F. gluer. See Glue, n.] To join with glue or a viscous substance; to cause to stick or hold fast, as if with glue; to fix or fasten.

This cold, congealed blood That glues my lips, and will not let me speak.

Shak.

Glue"pot` (?), n. A utensil for melting glue, consisting of an inner pot holding the glue, immersed in an outer one containing water which is heated to soften the glue.

Glu"er (?), n. One who cements with glue.

Glu"ey (?), a. Viscous; glutinous; of the nature of, or like, glue.

Glu"ey*ness, n. Viscidity.

Glu"ish, a. Somewhat gluey. Sherwood.

Glum (?), n. [See Gloom.] Sullenness. [Obs.] Skelton.

Glum, a. Moody; silent; sullen.

I frighten people by my glun face.

Thackeray.

Glum, v. i. To look sullen; to be of a sour countenance; to be glum. [Obs.] Hawes.

Glu*ma"ceous (?), a. [Cf. F. glumancÈ. See Glume.] Having glumes; consisting of glumes.

Glu"mal (?), a. (Bot.) Characterized by a glume, or having the nature of a glume.

Glume (glm), n. [L. gluma hull, husk, fr. glubere to bark or peel: cf. F. glume or gloume.] (Bot.) The bracteal covering of the flowers or seeds of grain and grasses; esp., an outer husk or bract of a spikelet. Gray.

{ Glu*mel"la (?), Glu"melle (?), } n. [F. glumelle, dim. of glume.] (Bot.) One of the palets or inner chaffy scales of the flowers or spikelets of grasses.

Glum"ly (?), adv. In a glum manner; sullenly; moodily.

Glum"my (?), a. [See Gloom.] Dark; gloomy; dismal. [Obs.]

Glum"ness, n. Moodiness; sullenness.