Definition of HFC noun from the Oxford Advanced American Dictionary

 

HFC

 noun
noun
NAmE//ˌeɪtʃ ɛf ˈsi//
 
[countable, uncountable]
 
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a type of gas used especially in aerosols (= types of containers that release liquid in the form of a spray). HFCs are not harmful to the layer of the gas ozone in the earth's atmosphere (the abbreviation forhydrofluorocarbon)
See the Oxford Advanced Learner's Dictionary entry: HFC