sulfonamide vs bactericide

sulfonamide and bactericide both are nouns.

Word	Noun	Adjective	Verb	Adverb
sulfonamide	Yes	No	No	No
bactericide	Yes	No	No	No

As nouns, bactericide is a hypernym of sulfonamide; that is, bactericide is a word with a broader meaning than sulfonamide:

sulfonamide: antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA
bactericide: any drug that destroys bacteria or inhibits their growth

Other hypernyms of sulfonamide include antibacterial, antibacterial drug.

sulfonamide (noun)	bactericide (noun)
antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA	any drug that destroys bacteria or inhibits their growth
	any chemical agent that destroys bacteria