arteria labialis superior vs superior labial artery

arteria labialis superior and superior labial artery both are nouns.

Word	Noun	Adjective	Verb	Adverb
arteria labialis superior	Yes	No	No	No
superior labial artery	Yes	No	No	No

As nouns, arteria labialis superior and superior labial artery are synonyms defined as:

arteria labialis superior and superior labial artery: an artery that is a branch of the facial artery that supplies the upper lip

arteria labialis superior (noun)	superior labial artery (noun)
an artery that is a branch of the facial artery that supplies the upper lip	an artery that is a branch of the facial artery that supplies the upper lip