Gas coal
Gas Gas (g[a^]s), n.; pl. {Gases} (g[a^]s"[e^]z). [Invented by the chemist Van Helmont of Brussels, who died in 1644.] 1. An a["e]riform 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 a["e]riform state. [1913 Webster]

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 a["e]riform fluid. [1913 Webster]

3. same as {gasoline}; -- a shortened form. Also, the accelerator pedal of a motor vehicle; used in the term `` step on the gas''. [PJC]

4. the accelerator pedal of a motor vehicle; used in the term `` step on the gas''. [PJC]

5. Same as {natural gas}. [PJC]

6. an exceptionally enjoyable event; a good time; as, The concert was a gas. [slang] [PJC]

Note: Gas is often used adjectively or in combination; as, gas fitter or gasfitter; gas meter or gas-meter, etc. [1913 Webster]

{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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • gas-coal — gasˈ coal noun 1. Any coal suitable for making gas 2. Cannel coal • • • Main Entry: ↑gas …   Useful english dictionary

  • gas coal — n. bituminous coal used to make any flammable gas …   English World dictionary

  • gas coal — noun : a coal used for making gas by distillation ordinarily being a caking bituminous coal * * * a soft coal suitable for the production of gas. [1875 80] * * * gas coal, bituminous coal used in making gas …   Useful english dictionary

  • gas coal — dujinės anglys statusas T sritis chemija apibrėžtis Akmens anglys, duodančios daug koksavimo dujų. atitikmenys: angl. cannal coal; fiery coal; gas coal; light coal rus. газовый уголь …   Chemijos terminų aiškinamasis žodynas

  • gas coal — coal which is used in making gas …   English contemporary dictionary

  • gas coal — /ˈgæs koʊl/ (say gas kohl) noun a soft coal suitable for making gas …   Australian English dictionary

  • gas coal — a soft coal suitable for the production of gas. [1875 80] * * * …   Universalium

  • Coal gasification — is the process of producing coal gas, a type of syngas–a mixture of carbon monoxide (CO), hydrogen (H2), carbon dioxide (CO2) and water vapour (H2O)–from coal. Coal gas, which is a combustible gas, was traditionally used as a source of energy for …   Wikipedia

  • Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …   Wikipedia

  • Coal-water slurry fuel — (CWSF or CWS or CWF) is a fuel which consists of fine coal particles suspended in water. Presence of water in CWS reduces harmful emissions into the atmosphere, makes the coal explosion proof, makes use of coal equivalent to use of liquid fuel (e …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”