liquid air

American  

noun

1. 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.

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liquid air British  

noun

1. 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

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Etymology

Origin of liquid air

First recorded in 1895–1900

Example Sentences

See Examples For:

liquid air

"But they are too expensive to do long-term energy storage. That's where liquid air comes in."

From BBC ● Nov. 6, 2020

Argon, neon, krypton, and xenon come from the fractional distillation of liquid air.

From Textbooks ● Feb. 14, 2019

The Institution of Mechanical Engineers says liquid air can compete with batteries and hydrogen to store excess energy generated from renewables.

From BBC ● Oct. 2, 2012

The first, the layer actually in contact with the liquid air, was to be made out of a highly conductive copper alloy.

From Scientific American ● Apr. 28, 2012

The great engines worked continuously, storing up liquid air in chambers under the gun platforms, but they were also doing other and, for the present, much more deadly work.

From The World Masters by George Chetwynd Griffith