liquid oxygen

American  

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.

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liquid oxygen British  

noun

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

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Etymology

Origin of liquid oxygen

First recorded in 1875–80

Example Sentences

At its base are 33 engines, burning a mix of liquid methane and liquid oxygen.

From BBC

During launches, the external tank carried propellants — liquid oxygen and liquid hydrogen — that powered the space shuttle’s three main engines to help bring the shuttle into orbit.

From Los Angeles Times

But Swedish submarines have liquid oxygen stored in tanks on board to run the diesel engines underwater to recharge the batteries, so they can stay submerged for longer and reduce the risk of detection.

From Reuters

Relativity is among several companies building rockets to launch into orbit using liquid oxygen and liquid methane as propellants.

From New York Times

Its Terran 1 rocket is scheduled to lift off as early as March 8 from Cape Canaveral, Fla. Relativity’s rocket is made mostly with 3-D printing and uses liquid oxygen and liquid methane as propellants.

From New York Times