nose drops vs diacetylmorphine

nose drops and diacetylmorphine both are nouns.

Word	Noun	Adjective	Verb	Adverb
nose drops	Yes	No	No	No
diacetylmorphine	Yes	No	No	No

As nouns, diacetylmorphine is a hypernym of nose drops; that is, diacetylmorphine is a word with a broader meaning than nose drops:

nose drops: street names for heroin
diacetylmorphine: a narcotic that is considered a hard drug; a highly addictive morphine derivative; intravenous injection provides the fastest and most intense rush

Other hypernyms of nose drops include heroin.

nose drops (noun)	diacetylmorphine (noun)
street names for heroin	a narcotic that is considered a hard drug; a highly addictive morphine derivative; intravenous injection provides the fastest and most intense rush