arteria cerebelli vs cerebellar artery

arteria cerebelli and cerebellar artery both are nouns.

Word	Noun	Adjective	Verb	Adverb
arteria cerebelli	Yes	No	No	No
cerebellar artery	Yes	No	No	No

As nouns, arteria cerebelli and cerebellar artery are synonyms defined as:

arteria cerebelli and cerebellar artery: an artery that supplies the cerebellum

arteria cerebelli (noun)	cerebellar artery (noun)
an artery that supplies the cerebellum	an artery that supplies the cerebellum