cryogen

[n] - a liquid that boils at below -160 C and is used as a refrigerant
Found on http://www.webdictionary.co.uk/definition.php?query=cryogen

cryogen

cryogenic gas. A gas that has been liquified by lowering temperature, usually to a temperature under about -100°C.
Found on http://antoine.frostburg.edu/chem/senese/101/glossary/c.shtml

cryogen

A freezing substance used to produce very low temperatures. ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

cryogen

noun a liquid that boils at below -160 C and is used as a refrigerant
Found on https://www.encyclo.co.uk/local/20974

cryogen

cryogen A freezing substance used to produce very low temperatures.
Found on http://www.wordinfo.info/words/index/info/view_unit/2785/2

Cryogen

A refrigerant to be used in a refrigerator for producing low temperatures. To reach superconducting temperatures, liquid gases such as Nitrogen are used in succession with liquid helium to reach the lowest temperatures. 1
Found on http://www-bdnew.fnal.gov/operations/accgloss/gloss.html

Cryogen

By convention one of the gases condensing below 150ºK.
Found on http://www-bdnew.fnal.gov/operations/accgloss/gloss.html

cryogen

Type: Term Pronunciation: krī′ō-jen Definitions: 1. A freezing substance or mixture used to produce very low temperatures.
Found on http://www.medilexicon.com/medicaldictionary.php?t=21642

cryogen

Any substance, such as liquid nitrogen, used to produce extreme cold during cryosurgery.
Found on http://www.thehorse.com/Glossary.xhtml?L=C

Cryogen

A gas that has been liquified by lowering temperature, usually to a temperature under about -100
Found on http://www.superglossary.com/Glossary/Science/Chemistry/
No exact match found