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gas British & World English

An air-like fluid substance which expands freely to fill any space available, irrespective of its quantity

CS gas British & World English

A powerful form of tear gas used particularly in the control of riots

gas cap British & World English

A cap that closes the pipe leading to the petrol tank of a motor vehicle

gas jet British & World English

Another term for gas burner

gas log British & World English

A gas-burning appliance consisting of a gas burner made to resemble a log, used in a fireplace to simulate the effect of a burning log

gas oil British & World English

A type of fuel oil distilled from petroleum and heavier than paraffin oil

off-gas British & World English

A gas which is given off, especially one emitted as the by-product of a chemical process

oil gas British & World English

A gaseous mixture derived from mineral oils by destructive distillation

Calor gas British & World English

Liquefied butane stored under pressure in portable containers, used domestically as a substitute for mains gas and in camping as a portable fuel

coal gas British & World English

A mixture of gases (chiefly hydrogen, methane, and carbon monoxide) obtained by the destructive distillation of coal and formerly used for lighting and heating

gas fire British & World English

A domestic heating appliance which uses gas as its fuel

gas-fired British & World English

Using gas as its fuel

gas giant British & World English

A large planet of relatively low density consisting predominantly of hydrogen and helium, such as Jupiter, Saturn, Uranus, or Neptune

gas laws British & World English

The physical laws that describe the properties of gases, including Boyle’s and Charles’s laws

gas mask British & World English

A protective mask used to cover a person’s face as a defence against poison gas

gas pedal British & World English

The pedal that controls the speed of a vehicle’s engine

gas plant British & World English

An aromatic Eurasian plant of the rue family, with showy white flowers and fragrant leaves that emit a flammable vapour. This can sometimes be ignited without harming the plant

gas-tight British & World English

Sealed so as to prevent the leakage of gas

marsh gas British & World English

Methane, especially as generated by decaying matter in marshes

nerve gas British & World English

A poisonous vapour which has a rapid disabling or lethal effect by disrupting the transmission of nerve impulses

noble gas British & World English

Any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table. They were long believed to be totally unreactive but compounds of xenon, krypton, and radon are now known

shale gas British & World English

Natural gas occurring within or extracted from shale

rare gas British & World English

another term for noble gas.

tear gas British & World English

Gas that causes severe irritation to the eyes, chiefly used in riot control to force crowds to disperse

tail gas British & World English

Gas produced in a refinery and not required for further processing

town gas British & World English

old-fashioned term for coal gas.

water gas British & World English

A fuel gas consisting mainly of carbon monoxide and hydrogen, made by passing steam over incandescent coke

ideal gas British & World English

A hypothetical gas whose molecules occupy negligible space and have no interactions, and which consequently obeys the gas laws exactly

inert gas British & World English

another term for noble gas.

blister gas British & World English

Poison gas which causes blisters on and intense irritation to the skin

bottled gas British & World English

Butane or propane gas stored under pressure in portable tanks

gas burner British & World English

A nozzle or jet through which gas is released to burn, e.g., on a stove

gas chamber British & World English

An airtight room that can be filled with poisonous gas to kill people or animals

gas fitter British & World English

A person trained to connect, disconnect, and service gas fittings and appliances

gas guzzler British & World English

A large car with a high fuel consumption

gas station British & World English

A petrol station

gas turbine British & World English

A turbine driven by expanding hot gases produced by burning fuel, as in a jet engine

mustard gas British & World English

A colourless oily liquid whose vapour causes severe irritation and blistering of the skin, used in chemical weapons

natural gas British & World English

Flammable gas, consisting largely of methane and other hydrocarbons, occurring naturally underground (often in association with petroleum) and used as fuel

perfect gas British & World English

another term for ideal gas.

poison gas British & World English

Poisonous gas or vapour, used especially to disable an enemy in warfare

gas constant British & World English

The constant of proportionality in the gas equation. It is equal to 8.314 joule kelvin−1 mole−1

gas equation British & World English

The equation of state of an ideal gas, PV = nRT, where P = pressure, V = volume, T = absolute temperature, R = the gas constant, and n = the number of moles of gas

gas gangrene British & World English

Rapidly spreading gangrene affecting injured tissue infected by a soil bacterium and accompanied by the evolution of foul-smelling gas

gas-permeable British & World English

(Of a contact lens) allowing the diffusion of gases into and out of the cornea

producer gas British & World English

A low-grade fuel gas consisting largely of nitrogen and carbon monoxide, formed by passing air, or air and steam, through red-hot carbon

synthesis gas British & World English

A mixture of carbon monoxide and hydrogen produced industrially, especially from coal, and used as a feedstock in making synthetic chemicals

laughing gas British & World English

non-technical term for nitrous oxide.

greenhouse gas British & World English

A gas that contributes to the greenhouse effect by absorbing infrared radiation. Carbon dioxide and chlorofluorocarbons are examples of greenhouse gases

gas chromatograph British & World English

A device or apparatus used in gas chromatography to separate the constituents of a volatile substance


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