cryogen

American  

[krahy-uh-juhn, -jen] / ˈkraɪ ə dʒən, -ˌdʒɛn /

noun

1. a substance for producing low temperatures; freezing mixture.

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cryogen British  

/ ˈkraɪədʒən /

noun

1. a substance used to produce low temperatures; a freezing mixture

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Etymology

Origin of cryogen

First recorded in 1870–75; cryo- + -gen

Example Sentences

The robots can apply small volumes of sample onto a grid just as another robot plunges the sample swiftly and evenly into cryogen, creating a thin, uniform, frozen layer that is perfect for imaging.

From Nature

But the big machines are expensive to make, use a lot of energy and require costly cryogen liquids like liquid nitrogen to keep them cool.

From Washington Times

But as the mission progressed, the cryogen gradually boiled away, and, on Monday, the Darmstadt controllers received telemetry from Herschel confirming every last drop was gone.

From BBC

The temperature of production of the cryohydrate is identical with the lowest temperature which can be produced on employing a mixture of ice and the salt as a freezing mixture or cryogen.

From Project Gutenberg