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
Origin of Freonf(luorine) + re(frigerant) + -on, as in neon
A trademark for a variety of nonflammable gaseous or liquid fluorinated hydrocarbons employed primarily as working fluids in refrigeration and air conditioning and as aerosol propellants.
(countable and uncountable, plural freons)
- Alternative spelling of freon.