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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Origin of liquid air
First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples 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
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012