perfluorocarbon vs fluorocarbon

perfluorocarbon and fluorocarbon both are nouns.

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

As nouns, fluorocarbon is a hypernym of perfluorocarbon; that is, fluorocarbon is a word with a broader meaning than perfluorocarbon:

perfluorocarbon: a powerful greenhouse gas emitted during the production of aluminum
fluorocarbon: a halocarbon in which some hydrogen atoms have been replaced by fluorine; used in refrigerators and aerosols

Other hypernyms of perfluorocarbon include greenhouse emission, greenhouse gas.

perfluorocarbon (noun)	fluorocarbon (noun)
a powerful greenhouse gas emitted during the production of aluminum	a halocarbon in which some hydrogen atoms have been replaced by fluorine; used in refrigerators and aerosols