A flammable mixture of methane and other gases used for lighting, heating, or cooking; spec. (a) (in early use) = coal gas, n.; (b) = natural gas, n.…

a flammable hydrocarbon gas obtained from mineral oil by destructive distillation or other process; (formerly) spec. butene (butylene).

gas for illumination obtained from wood.

= coal gas, n.

gas intended for use as fuel.

coal gas used for generating power, not for providing illumination.

Kept or contained in a bottle; (esp. of fruit) preserved in a glass bottle or jar. Also in extended use, in poetic descriptions of alcoholic drinks.

Fuel gas obtained directly from plant or animal material, typically by the bacterial decomposition of animal or vegetable waste in the absence of…

natural gas obtained from oil fields beneath the North Sea (sense 1b).