Alternative form of vapor lock

(physics) The ratio of the density of a gas to the density of hydrogen at the same temperature and pressure.

(Britain) A contrail.

plural of vapour trail

Alternative spelling of sodium vapor lamp

Alternative spelling of saturation vapor pressure

(British spelling) a gaseous discharge lamp in which the arc discharge takes place in mercury vapour; used for highway illumination and as an industrial source of ultraviolet radiation

plural of mercury-vapour lamp

plural of saturation vapour pressure

Third-person singular simple present indicative form of vapourise