NegGram vs bactericide

NegGram and bactericide both are nouns.

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

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

NegGram: antibacterial agent used especially to treat genitourinary infections
bactericide: any drug that destroys bacteria or inhibits their growth

Other hypernyms of NegGram include antibacterial, antibacterial drug.

NegGram (noun)	bactericide (noun)
antibacterial agent used especially to treat genitourinary infections	any drug that destroys bacteria or inhibits their growth
	any chemical agent that destroys bacteria