GAS n.
A complex mixture of gases, of which the most important constituents are marsh gas, olefiant gas, and hydrogen, artificially produced by the destructive distillation of gas coal, or sometimes of peat, wood, oil, resin, etc. It gives a brilliant light when burned, and is the common gas used for illuminating purposes.…
GASTROPODA n.
One of the classes of Mollusca, of great extent. It includes most of the marine spiral shells, and the land and fresh-water snails. They generally creep by means of a flat, muscular disk, or foot, on the ventral side of the body. The head usually bears one or two pairs of tentacles. See Mollusca. [Written also Gasterop…
GECKO n.
Any lizard of the family Geckonidæ. The geckoes are small, carnivorous, mostly nocturnal animals with large eyes and vertical, elliptical pupils. Their toes are generally expanded, and furnished with adhesive disks, by which they can run over walls and ceilings. They are numerous in warm countries, and a few species ar…
GEE v.
river (i.e., in the United States, to the right side); -- said of cattle, or a team; used most frequently in the imperative, often with off, by drivers of oxen, in directing their teams, and opposed to haw, or hoi. [Written also jee.]
GILL n.
emselves. -- Gill opening, or Gill slit (Anat.), an opening behind and below the head of most fishes, and some amphibians, by which the water from the gills is discharged. In most fishes there is a single opening on each side, but in the sharks and rays there are five, or more, on each side. -- Gill rakes, or Gill ra…
GLANCE n.
A name given to some sulphides, mostly dark-colored, which have a brilliant metallic luster, as the sulphide of copper, called copper glance. Glance coal, anthracite; a mineral composed chiefly of carbon. -- Glance cobalt, cobaltite, or gray cobalt. -- Glance copper, c -- Glance wood, a hard wood grown in Cuba, and u…