methenamine vs bactericide

methenamine and bactericide both are nouns.

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

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

methenamine: antibacterial agent (trade names Mandelamine and Urex) that is contained in many products that are used to treat urinary infections
bactericide: any drug that destroys bacteria or inhibits their growth

Other hypernyms of methenamine include antibacterial, antibacterial drug.

methenamine (noun)	bactericide (noun)
antibacterial agent (trade names Mandelamine and Urex) that is contained in many products that are used to treat urinary infections	any drug that destroys bacteria or inhibits their growth
	any chemical agent that destroys bacteria