isobutyl nitrite vs vasodilator

isobutyl nitrite and vasodilator both are nouns.

Word	Noun	Adjective	Verb	Adverb
isobutyl nitrite	Yes	No	No	No
vasodilator	Yes	No	No	No

As nouns, vasodilator is a hypernym of isobutyl nitrite; that is, vasodilator is a word with a broader meaning than isobutyl nitrite:

isobutyl nitrite: a colorless pungent liquid sometimes used as a stimulant drug by drug abusers
vasodilator: a drug that causes dilation of blood vessels

Other hypernyms of isobutyl nitrite include excitant, stimulant, stimulant drug, vasodilative.

isobutyl nitrite (noun)	vasodilator (noun)
a colorless pungent liquid sometimes used as a stimulant drug by drug abusers	a drug that causes dilation of blood vessels