GLO 



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GL U 



GLAUC'OMA, ) from <^\avoi, glaucous. 



GLAUC'OSIS, J A disease of the eye, in 

 which the vitreous humour becomes 

 opaque, and of a blue or sea-green colour. 

 This name has also been given to cataract. 



GLAC'COUS, Lat. glaucus, of a gray bluish 

 green colour: applied to leaves, &c., of 

 plants, which are covered with a fine sea- 

 green mealiness that easily rubs off, as is 

 seen on the back of the cabbage leaf. 



GLAZE. In potteries, the vitreous in- 

 crustation on the surface of earthen- ware. 



GLEBE, Lat. gleba, a clod. 1. The land 



belonging to a parish church. 2. A 



species of earth in which is contained 

 some mineral ore. 



GLEE. In music, a short composition 

 sung in parts : originally used for convi- 

 vial purposes. 



GLEE-MAN, an itinerant minstrel was so 

 called by the Saxons. 



GLENE, yA;ir<i- 1- Tn e cavity or socket 



of the eye. 2. The cavity of a bone 



which receives another bone into it. 



GLIA'DINE, from yXict, glue. The name 

 given by Taddey, an Italian chemist, to 

 one of the constituents of gluten (q. v.). 



GLIM'MER, Germ, glimmern, to gleam. 

 A general name given sometimes to mica- 

 ceous minerals. 



GLI'RES, plural of glis, a dormouse. The 

 fourth order of mammalia in the Lin- 

 noean system, including such animals as 

 have two fore teeth, a cutting one in each 

 jaw, no tusks, and feet with claws ; com- 

 prehending guinea pigs, rabbits, hares, 

 squirrels, mice, beavers, &c. 



GLOBE, a body whose surface is every 

 where equidistant from the centre. This 

 is the name usually given to an artificial 

 sphere of metal, paper, or other matter, 

 on whose convex surface is drawn a map 

 of the earth or heavens with their several 

 circles. That on which the parts of the 

 earth are delineated is called a terrestrial 

 globe; and that having the constellations, 

 &c., marked on its surface is called a celes- 

 tial globe. 



GLOBO'SE, Lat. globosiis, round ; applied 

 to roots which are round, and give off 

 radicles in every direction. 



GLOB'ULAR CHART. A delineation of 

 the terrestrial surface, or any part of it, 

 on a plane, according to globular projec- 

 tion. 



GLO'BUS HTSTER'ICUS. The air ascend- 

 ing in the oesophagus, and prevented by 

 spasm from reaching the mouth, is so 

 called because it mostly attends hysteria, 

 and gives the sensation of a ball ascending 

 in the throat. It is a very common an- 

 noyance to persons of a "nervous tem- 

 perament. 



GLO'MF.R. In anatomy, a conglomerate 

 gland. Lat. gloma, a clue of thread. 



GLOM'ERATE, Lat. glomeratus. Gathered 

 into a mass of a globular form. 



GLOM'ERIS, a myriapod, resembling a 

 wood-louse, thus named because when 

 alarmed, it rolls itself up into a spherical' 

 ball. 



GLOM'ERCLE, Lat. glomentlut. A. term 

 in botany, for a small tuft, mostly hi the 

 axilla of the peduncle. 



GLO'RT, Lat. gloria. In painting, a circle, 

 plain or radiated, surrounding the heads 

 of saints, &c., especially of our Saviour. 



GLOS'SO-PHARYN'GEAI. NERVES, the ninth 

 pair of nerves, arising from the processes 

 of the cerebellum, and terminating, by 

 numerous branches, in the muscles of the 

 tongue and pharynx. 



GLOTTIS, from -y^carra., the tongue. 

 The superior opening of the larynx at the 

 bottom of the tongue. 



GLOW-WORM, a name common in some 

 measure to several species of Lampy rides, 

 but especially applied to the female of the 

 Lampyris noctiluca, Lin., which emits a 

 very vivid phosphorescent light. The 1 u - 

 minous matter occupies the inferior part 

 of the last two or three annuli, which 

 differ in colour from the rest, and are 

 usually yellowish or whitish. 



GLUCI'NA, ) from yXw*u?, sweet. One 



GLUCI'KE, J O f the primitive earths, first 

 discovered by Vauquelin, in the beryl and 

 emerald, and thus named because it forms 

 sweetish salts with the acids. 



GLUE, Fr. glu, inspissated animal glu- 

 ten. A tenacious viscid matter, which is 

 much employed as a cement for wood. &c. 

 It is made from parings of hides, and 

 other offals, by boiling them in water to 

 a jelly. 



GLUMA'CEOUS, glumose. 



GLCME, Lat. gluma, husk. The peculiar 

 calyx of grasses and grass-like plants of a 

 chaffy nature, formed of little concave 

 leaflets called valves. 



GLU'TEN, Lat., from gelo, to congeal. The 

 most nutritious part of wheaten flour. It 

 exists also in most other kinds of grain, but 

 in; smaller quantity; it resembles animal 

 more than vegetable substances, as it con- 

 tains nitrogen, besides carbon . oxygen and 

 hydrogen. It is a stiff and tenacious solid, 

 possessing ductility and elasticity, so that 

 it can be spread into a thin membranous 

 sheet. It is readily procured by making 

 wheaten flour into a paste, and removing 

 the starch and saccharine matter, by 

 washing it with water. It may be re- 

 solved, by means of alcohol, into two 

 principles, gliadine and zymome ; some 

 name a third, mucine. 



GLTJ'TEUS, from >yXovros, the name of 

 some muscles, arteries, &c. of the buttocks 



GLUT'TON. In zoology, a name common 

 to all the speciesof the genus Gulo, Storr., 

 but especially applied to the Urtui g^o, 



