liquid air


noun

a pale blue, intensely cold liquid, obtained by the compression and cooling of air: used as a source of oxygen, nitrogen, and inert gases, and as a refrigerant.

Origin of liquid air

First recorded in 1895–1900

Example sentences from the Web for liquid air

  • Beatrice had fallen back upon her airy tone, which was her strongest weapon of defense—unless one except her liquid-air smile.

    Her Prairie Knight |B.M. Sinclair, AKA B. M. Bower

British Dictionary definitions for liquid air

liquid air

noun

air that has been liquefied by cooling. It is a pale blue and consists mainly of liquid oxygen (boiling pt: –182.9°C) and liquid nitrogen (boiling pt: –195.7°C): used in the production of pure oxygen, nitrogen, and the inert gases, and as a refrigerant