liquid oxygen

liquid oxygen Word Origin noun

1. a clear, pale blue liquid obtained by compressing oxygen and then cooling it below its boiling point: used chiefly as an oxidizer in liquid rocket propellants.

Origin of liquid oxygen First recorded in 1875–80 Also called lox, LOX British Dictionary definitions for liquid oxygen liquid oxygen noun

1. the clear pale blue liquid state of oxygen produced by liquefying air and allowing the nitrogen to evaporate: used in rocket fuelsAlso called: lox