fluorocarbon vs HFC

fluorocarbon and HFC both are nouns.

Word	Noun	Adjective	Verb	Adverb
fluorocarbon	Yes	No	No	No
HFC	Yes	No	No	No

As nouns, HFC is a hyponym of fluorocarbon; that is, HFC is a word with a more specific, narrower meaning than fluorocarbon:

fluorocarbon: a halocarbon in which some hydrogen atoms have been replaced by fluorine; used in refrigerators and aerosols
HFC: a fluorocarbon emitted as a by-product of industrial manufacturing

Other hyponyms of fluorocarbon include CFC, chlorofluorocarbon, hydrofluorocarbon, perfluorocarbon, PFC, tetrafluoroethylene.

fluorocarbon (noun)	HFC (noun)
a halocarbon in which some hydrogen atoms have been replaced by fluorine; used in refrigerators and aerosols	a fluorocarbon emitted as a by-product of industrial manufacturing