Garth, n. [Girth.] A hoop or band. [Prov. Eng.]

||Ga"rum (g"rm), n. [L., fr. Gr. ga`ros.] A sauce made of small fish.

||It was prized by the ancients.

Gar"vie (?), n. (Zoˆl.) The sprat; -- called also garvie herring, and

garvock. [Prov. Eng. & Scot.]

Gas (gs), n.; pl. Gases (-z). [Invented by the chemist Van Helmont of

Brussels, who died in 1644.] 1. An aÎriform fluid; -- a term used at

first by chemists as synonymous with air, but since restricted to

fluids supposed to be permanently elastic, as oxygen, hydrogen, etc.,

in distinction from vapors, as steam, which become liquid on a

reduction of temperature. In present usage, since all of the supposed

permanent gases have been liquified by cold and pressure, the term has

resumed nearly its original signification, and is applied to any

substance in the elastic or aÎriform state.

2. (Popular Usage) (a) 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. (b)

Laughing gas. (c) Any irrespirable aÎriform fluid.

Gas is often used adjectively or in combination; as, gas fitter or

gasfitter; gas meter or gas-meter, etc.

Air gas (Chem.), a kind of gas made by forcing air through some

volatile hydrocarbon, as the lighter petroleums. The air is so

saturated with combustible vapor as to be a convenient illuminating and

heating agent. -- Gas battery (Elec.), a form of voltaic battery, in

which gases, especially hydrogen and oxygen, are the active agents. --

Gas carbon, Gas coke, etc. See under Carbon, Coke, etc. -- Gas coal, a

bituminous or hydrogenous coal yielding a high percentage of volatile

matters, and therefore available for the manufacture of illuminating

gas. R. W. Raymond. -- Gas engine, an engine in which the motion of the

piston is produced by the combustion or sudden production or expansion

of gas; -- especially, an engine in which an explosive mixture of gas

and air is forced into the working cylinder and ignited there by a gas

flame or an electric spark. -- Gas fitter, one who lays pipes and puts

up fixtures for gas. -- Gas fitting. (a) The occupation of a gas

fitter. (b) pl. The appliances needed for the introduction of gas into

a building, as meters, pipes, burners, etc. -- Gas fixture, a device

for conveying illuminating or combustible gas from the pipe to the gas-

burner, consisting of an appendage of cast, wrought, or drawn metal,

with tubes upon which the burners, keys, etc., are adjusted. -- Gas

generator, an apparatus in which gas is evolved; as: (a) a retort in

which volatile hydrocarbons are evolved by heat; (b) a machine in which

air is saturated with the vapor of liquid hydrocarbon; a carburetor;

(c) a machine for the production of carbonic acid gas, for aÎrating

water, bread, etc. Knight. -- Gas jet, a flame of illuminating gas. --

Gas machine, an apparatus for carbureting air for use as illuminating

gas. -- Gas meter, an instrument for recording the quantity of gas

consumed in a given time, at a particular place. -- Gas retort, a

retort which contains the coal and other materials, and in which the

gas is generated, in the manufacture of gas. -- Gas stove, a stove for

cooking or other purposes, heated by gas. -- Gas tar, coal tar. -- Gas

trap, a drain trap; a sewer trap. See 4th Trap, 5. -- Gas washer (Gas

Works), an apparatus within which gas from the condenser is brought in

contact with a falling stream of water, to precipitate the tar

remaining in it. Knight. -- Gas water, water through which gas has been

passed for purification; -- called also gas liquor and ammoniacal

water, and used for the manufacture of sal ammoniac, carbonate of

ammonia, and Prussian blue. Tomlinson. -- Gas well, a deep boring, from

which natural gas is discharged. Raymond. -- Gas works, a manufactory

of gas, with all the machinery and appurtenances; a place where gas is

generated for lighting cities. -- Laughing gas. See under Laughing. --

Marsh gas (Chem.), a light, combustible, gaseous hydrocarbon, CH4,

produced artificially by the dry distillation of many organic

substances, and occurring as a natural product of decomposition in

stagnant pools, whence its name. It is an abundant ingredient of

ordinary illuminating gas, and is the first member of the paraffin

series. Called also methane, and in coal mines, fire damp. -- Natural

gas, gas obtained from wells, etc., in Pennsylvania, Ohio, and

elsewhere, and largely used for fuel and illuminating purposes. It is

chiefly derived from the Coal Measures. -- Olefiant gas (Chem.). See

Ethylene. -- Water gas (Chem.), a kind of gas made by forcing steam

over glowing coals, whereby there results a mixture of hydrogen and

carbon monoxide. This gives a gas of intense heating power, but

destitute of light-giving properties, and which is charged by passing

through some volatile hydrocarbon, as gasoline.

<! p. 614 !>

Gas`a*lier" (?), n. [Formed from gas, in imitation of chandelier.] A

chandelier arranged to burn gas.

Gas"-burn`er (?), n. The jet piece of a gas fixture where the gas is

burned as it escapes from one or more minute orifices.

Gas"coines (?), n. pl. See Gaskins, 1. Lyly.

Gas"con (?; F. ?), a. [F.] Of or pertaining to Gascony, in France, or

to the Gascons; also, braggart; swaggering. -- n. A native of Gascony;

a boaster; a bully. See Gasconade.

Gas`con*ade" (?), n. [F. gasconnade, from Gascon an inhabitant of

Gascony, the people of which were noted for boasting.] A boast or

boasting; a vaunt; a bravado; a bragging; braggodocio. Swift.

Gas`con*ade", v. i. [imp. & p. p. Gasconaded; p. pr. & vb. n.

Gasconading.] To boast; to brag; to bluster.

Gas`con*ad"er (?), n. A great boaster; a blusterer.

Gas"coynes (?), n. pl. Gaskins. Beau. & Fl.

Gas*e"i*ty (? or ?), n. State of being gaseous. [R] Eng. Cyc.

Gas"e*ous (? or ?; 277), a. [From Gas. Cf. F. gazeux.] 1. In the form,

or of the nature, of gas, or of an aÎriform fluid.

2. Lacking substance or solidity; tenuous. "Unconnected, gaseous

information." Sir J. Stephen.

Gash (gsh), v. t. [imp. & p. p. Gashed (gsht); p. pr. & vb. n.

Gashing.] [For older garth or garse, OF. garser to scarify, F. gercer

to chap, perh. from an assumed LL. carptiare, fr. L. carpere, carptum,

to pluck, separate into parts; cf. LL. carptare to wound. Cf. Carpet.]

To make a gash, or long, deep incision in; -- applied chiefly to

incisions in flesh.

Grievously gashed or gored to death.

Hayward.

Gash, n. A deep and long cut; an incision of considerable length and

depth, particularly in flesh.

Gash"ful (?), a. Full of gashes; hideous; frightful. [Obs.] "A gashful,

horrid, ugly shape." Gayton.

Gas`i*fi*ca"tion (?), n. [See Gasify.] The act or process of converting

into gas.

Gas"i*form, a. Having a form of gas; gaseous.

Gas"i*fy (?), v. t. [imp. & p. p. Gasified (?); p. pr. & vb. n.

Gasifying.] [Gas + -fy.] To convert into gas, or an aÎriform fluid, as

by the application of heat, or by chemical processes.

Gas"i*fy (?), v. i. To become gas; to pass from a liquid to a gaseous

state. Scientific American.

Gas"ket (?), n. [Cf. F. garcette, It. gaschetta, Sp. cajeta caburn,

garceta reef point.] 1. (Naut.) A line or band used to lash a furled

sail securely. Sea gaskets are common lines; harbor gaskets are plaited

and decorated lines or bands. Called also casket.

2. (Mech.) (a) The plaited hemp used for packing a piston, as of the

steam engine and its pumps. (b) Any ring or washer of packing.

Gas"kins (?), n. pl. [Cf. Galligaskins.] 1. Loose hose or breeches;

galligaskins. [Obs.] Shak.

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