arteria communicans vs artery

arteria communicans and artery both are nouns.

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

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

arteria communicans: any of three arteries in the brain that make up the circle of Willis
artery: a blood vessel that carries blood from the heart to the body

Other hypernyms of arteria communicans include arteria, arterial blood vessel.

arteria communicans (noun)	artery (noun)
any of three arteries in the brain that make up the circle of Willis	a major thoroughfare that bears important traffic
	a blood vessel that carries blood from the heart to the body