liquid oxygen

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.

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 fuels Also calledlox

Word History and Origins

Origin of liquid oxygen¹

First recorded in 1875–80

Example Sentences

The city of Orlando has urged residents to limit their water use, because the same liquid oxygen used to treat the water supply is being used to provide air to Covid-19 patients.

From Vox

The SpaceX Falcon series of reusable rockets will propel the Crew Dragon into orbit using liquid kerosene and liquid oxygen.

From Popular-Science

The company has also built several new large tanks as part of the ground-support equipment that fuels the massive vehicles with liquid oxygen and methane.

From Ars Technica

Compounding the danger was the fuel for the rocket engines, a tank of liquid oxygen so cold it frosted the X-1′s outer skin.

From Popular-Science

The line feeding liquid oxygen into the rocket engine breached and, without a supply of oxidizer, the kerosene fuel would not burn.

From Ars Technica

The Russians had developed a very powerful, very reliable, and relatively simple liquid oxygen/kerosene engine.

From The Daily Beast

We may safely feel certain that the nostrum was not liquid oxygen.

From Project Gutenberg

Oxyliquit: liquid oxygen absorbed in a porous combustible material.

From Project Gutenberg

This liquid oxygen is then allowed to return to a gas and is stored in large gasometers or tanks.

From Project Gutenberg

Liquid oxygen doesn't exist above a temperature of 229 degrees below zero.

From Project Gutenberg

The idea of liquefying gas—of circulating a liquid oxygen in the blood—seemed impossible.

From Project Gutenberg