communicating artery vs arteria communicans

communicating artery and arteria communicans both are nouns.

Word	Noun	Adjective	Verb	Adverb
communicating artery	Yes	No	No	No
arteria communicans	Yes	No	No	No

As nouns, communicating artery and arteria communicans are synonyms defined as:

communicating artery and arteria communicans: any of three arteries in the brain that make up the circle of Willis

communicating artery (noun)	arteria communicans (noun)
any of three arteries in the brain that make up the circle of Willis	any of three arteries in the brain that make up the circle of Willis