vena colica vs vena

vena colica and vena both are nouns.

Word	Noun	Adjective	Verb	Adverb
vena colica	Yes	No	No	No
vena	Yes	No	No	No

As nouns, vena is a hypernym of vena colica; that is, vena is a word with a broader meaning than vena colica:

vena colica: vein serving the large intestine
vena: a blood vessel that carries blood from the capillaries toward the heart

Other hypernyms of vena colica include vein, venous blood vessel.

vena colica (noun)	vena (noun)
vein serving the large intestine	a blood vessel that carries blood from the capillaries toward the heart