Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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coal gas a gas used for lighting and heating that is produced by the distillation of bituminous coal. [2 definitions]
gas burner the nozzle at the end of a gas fixture; gas jet.
gas chamber a sealed room in which prisoners are executed by means of poisonous gas.
gas fitter a person who installs and repairs gas pipes and fixtures.
gas jet a burner, pipe, or other apertured fitting at the end of a gas fixture. [2 definitions]
gas main a large pipe that conducts gas into smaller pipes.
gas mantle an incombustible meshwork hood for a gas jet or kerosene wick that gives off a brilliant incandescent light when a flame is lit within it.
gas mask a device worn over the face that has a built-in chemical air filter to protect the wearer from inhaling poisonous gases or noxious fumes.
gas plant see dittany.
gas station a place where gas, oil, and other supplies for running a car can be bought; filling station; service station.
greenhouse gas any atmospheric gas that absorbs and emits radiant energy and contributes to the greenhouse effect.
inert gas any of a group of chemical elements, such as helium and neon, that seldom form compounds with other elements and that are gases at room temperature.
laughing gas see nitrous oxide.
marsh gas a gas, mostly methane, that is produced by the decomposition of organic matter.
mustard gas a liquid chemical-warfare agent that causes severe skin burns, damages the lungs, and can cause blindness and death.
natural gas a mixture of hydrocarbon gases occurring naturally in the earth's crust, usu. with petroleum deposits, that is used chiefly for fuel.
nerve gas any poisonous gas that attacks the nervous system.
poison gas any of various toxic gases, such as chlorine, esp. when used in warfare.
tear gas any of several chemicals that induce tears, eye irritation, or temporary blindness, used esp. in warfare or by police to quell riots.
tear-gas to hurl tear gas at, usu. in the form of grenades or projectiles.