natural gas noun
: gas that is taken from under the ground and used as fuel
: gas issuing from the earth's crust through natural openings or bored wells; especially : a combustible mixture of methane and other hydrocarbons used chiefly as a fuel and raw material
: gas manufactured from organic matter (as coal)
Examples of NATURAL GAS
- a house heated by natural gas
First Known Use of NATURAL GAS
natural gas noun (Concise Encyclopedia)
Colourless, highly flammable gaseous hydrocarbon consisting primarily of methane and ethane. It may also contain heavier hydrocarbons, carbon dioxide, hydrogen, hydrogen sulfide, nitrogen, helium, and argon. It commonly occurs in association with crude oil (see petroleum). Natural gas is extracted from wells drilled into the Earth. Some natural gas can be used as it comes from the well, without any refining, but most requires processing. It is transported either in its natural gaseous state by pipeline or, after liquefaction by cooling, by tankers. Liquefied natural gas occupies only about 1/600 of the volume of the gas. It has grown steadily as a source of energy since the 1930s.
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