Freon ( FREE-on) is a registered trademark of The Chemours Company, which uses it for a number of halocarbon products. They are stable, nonflammable, low toxicity gases or liquids which have generally been used as refrigerants and as aerosol propellants.
A substance used in a heat cycle that undergoes a phase change between gas and liquid to allow the cooling, as in refrigerators, air conditioners, etc.
That which makes cool or cold, such as a medicine for allaying the symptoms of fever.
(obsolete) That cools or freezes; providing relief from heat or fever.
Cooling; allaying heat or fever.
That which makes to be cool or cold; specifically, a medicine or an application for allaying fever, or the symptoms of fever; - used also figuratively.
a substance used to provide cooling (as in a refrigerator)
causing cooling or freezing;
‘a refrigerant substance such as ice or solid carbon dioxide’;
A refrigerant is a working fluid used in the refrigeration cycle of air conditioning systems and heat pumps where in most cases they undergo a repeated phase transition from a liquid to a gas and back again. Refrigerants are heavily regulated due to their toxicity, flammability and the contribution of CFC and HCFC refrigerants to ozone depletion and that of HFC refrigerants to climate change.