any of a group of chemically unreactive chlorofluorocarbons used as aerosol propellants, refrigerants, and solvents
Freon in American English
(ˈfriˌɑn)
US
trademark
any of a series of gaseous or low-boiling, inert, nonflammable compounds of fluorine, carbon, and often chlorine: used as refrigerants, solvents, and aerosol propellants