GLASS n.
A hard, brittle, translucent, and commonly transparent substance, white or colored, having a conchoidal fracture, and made by fusing together sand or silica with lime, potash, soda, or lead oxide. It is used for window panes and mirrors, for articles of table and culinary use, for lenses, and various articles of orname…
GNEISS n.
A crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. Hornblende sometimes takes the place of the mica, and it is then called hornblendic or syenitic gneiss. Similar va…
GOOSE n.
or a pipe, curved like the neck of a goose; specially (Naut.), an iron hook connecting a spar with a mast. -- Goose quill, a large feather or quill of a goose; also, a pen made from it. -- Goose skin. See Goose flesh, above. -- Goose tongue (Bot.), a composite plant (Achillea ptarmica), growing wild in the British…
GRANITE n.
A crystalline, granular rock, consisting of quartz, feldspar, and mica, and usually of a whitish, grayish, or flesh-red color. It differs from gneiss in not having the mica in planes, and therefor in being destitute of a schistose structure.
GRASS n.
ture and hay. Dactylis glomerata. Porcupine grass, troublesome to sheep. Northwest. Stipa spartea. Quaking grass, ornamental. Briza media and maxima. Quitch, or Quick, grass, etc., a weed. Agropyrum repens. Ray grass. Same as Rye grass (below). Redtop, pasture and hay. Agrostis vulgaris. Red-topped buffalo grass, forag…
GROUND n.
s seat, as distinguished from a compression cock. Knight. -- Ground glass, glass the transparency of which has been destroyed by having its surface roughened by grinding. -- Ground joint, a close joint made by grinding together two pieces, as of metal with emery and oil, or of glass with fine sand and water.…