perineal artery vs artery

perineal artery and artery both are nouns.

Word	Noun	Adjective	Verb	Adverb
perineal artery	Yes	No	No	No
artery	Yes	No	No	No

As nouns, artery is a hypernym of perineal artery; that is, artery is a word with a broader meaning than perineal artery:

perineal artery: a branch of the internal pudendal artery that supplies superficial structures of the perineum
artery: a blood vessel that carries blood from the heart to the body

Other hypernyms of perineal artery include arteria, arterial blood vessel.

perineal artery (noun)	artery (noun)
a branch of the internal pudendal artery that supplies superficial structures of the perineum	a major thoroughfare that bears important traffic
	a blood vessel that carries blood from the heart to the body