epigastric artery vs artery

epigastric artery and artery both are nouns.

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

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

epigastric artery: one of three arteries supplying the anterior walls of the abdomen
artery: a blood vessel that carries blood from the heart to the body

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

epigastric artery (noun)	artery (noun)
one of three arteries supplying the anterior walls of the abdomen	a major thoroughfare that bears important traffic
	a blood vessel that carries blood from the heart to the body