a fluorocarbon with chlorine; formerly used as a refrigerant and as a propellant in aerosol cans
"the chlorine in CFCs causes depletion of atmospheric ozone"
Any of a class of organic compounds in which the hydrogen atoms of a hydrocarbon are replaced with those of chlorine and fluorine; formerly used as refrigerants and aerosol can propellants but withdrawn due to causing damage to the ozone layer.