bactericide vs medicinal drug

bactericide and medicinal drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
bactericide	Yes	No	No	No
medicinal drug	Yes	No	No	No

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

bactericide: any drug that destroys bacteria or inhibits their growth
medicinal drug: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of bactericide include medicament, medication, medicine.

bactericide (noun)	medicinal drug (noun)
any drug that destroys bacteria or inhibits their growth	(medicine) something that treats or prevents or alleviates the symptoms of disease
any chemical agent that destroys bacteria