chloroacetophenone used as tear gas for riot control, although it is normally replaced nowadays with CS gas.

A gas, such as helium or hydrogen, that is used to produce buoyancy for e.g. balloons or airships.

A cylindrical lidded glass vessel for collecting and storing gases from experiments etc.

An equal mixture of nitrous oxide and oxygen, used as a mild analgesic and anaesthetic, particularly during childbirth, for dental procedures, and in emergency medicine.

plural of gas cylinder

A truck designed to store gasoline which is being delivered to gas stations.

A gauge in a vehicle that shows how much gasoline remains in the vehicle.

(analytical chemistry) An item of laboratory equipment used to withdraw a volume of gas from a closed chemical system, for measurement and/or analysis.

(chemistry) methane

(Canada) filling station