vaginal artery vs artery

vaginal artery and artery both are nouns.

Word	Noun	Adjective	Verb	Adverb
vaginal artery	Yes	No	No	No
artery	Yes	No	No	No

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

vaginal artery: a branch of the internal iliac that provides blood for the vagina and the base of the bladder and the rectum
artery: a blood vessel that carries blood from the heart to the body

Other hypernyms of vaginal artery include arteria, arterial blood vessel.

vaginal artery (noun)	artery (noun)
a branch of the internal iliac that provides blood for the vagina and the base of the bladder and the rectum	a major thoroughfare that bears important traffic
	a blood vessel that carries blood from the heart to the body