arteria perinealis vs perineal artery

arteria perinealis and perineal artery both are nouns.

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

As nouns, arteria perinealis and perineal artery are synonyms defined as:

arteria perinealis and perineal artery: a branch of the internal pudendal artery that supplies superficial structures of the perineum

arteria perinealis (noun)	perineal artery (noun)
a branch of the internal pudendal artery that supplies superficial structures of the perineum	a branch of the internal pudendal artery that supplies superficial structures of the perineum