Lexic.us

Definition of Gas

1. Noun. The state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container.

2. Verb. Attack with gas; subject to gas fumes. "The despot gassed the rebellious tribes"

3. Noun. A fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely.

4. Verb. Show off.

5. Noun. A volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines.

6. Noun. A state of excessive gas in the alimentary canal.

7. Noun. A pedal that controls the throttle valve. "He stepped on the gas"

8. Noun. A fossil fuel in the gaseous state; used for cooking and heating homes.

Definition of Gas

1. n. An aëriform 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 aëriform state.

2. v. t. To singe, as in a gas flame, so as to remove loose fibers; as, to gas thread.

3. n. Gasoline.

Definition of Gas

1. to supply with gas (a substance capable of indefinite expansion) [v GASSED, GASSING, GASES or GASSES]

Medical Definition of Gas

1. Origin: Invented by the chemist Van Helmont of Brussels, who died in 1644. 1. An aeriform 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 aeriform state. 2. 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. Laughing gas. Any irrespirable aeriform fluid. Gas is often used adjectively or in combination; as, gas fitter or gasfitter; gas meter or gas-meter, etc. Air gas, 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, 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. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Gas

garum garum garums garvey garveys garvie garvie garvies garvock garvocks

Gary Gary Cooper Gary Kasparov Gary Weinstein gas (current term) gas (current term) gas-cooled reactor gas-discharge lamp gas-discharge tube gas-liquid chromatography

gas-tight gas-turbine ship gasahol gasahols gasalier gasaliers gasbag gasbags Gascogne gascon

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