vena ileocolica vs ileocolic vein

vena ileocolica and ileocolic vein both are nouns.

Word	Noun	Adjective	Verb	Adverb
vena ileocolica	Yes	No	No	No
ileocolic vein	Yes	No	No	No

As nouns, vena ileocolica and ileocolic vein are synonyms defined as:

vena ileocolica and ileocolic vein: a vein that drains the end of the ileum and the appendix and the cecum and the lower part of the ascending colon

vena ileocolica (noun)	ileocolic vein (noun)
a vein that drains the end of the ileum and the appendix and the cecum and the lower part of the ascending colon	a vein that drains the end of the ileum and the appendix and the cecum and the lower part of the ascending colon