vena gastroomentalis vs vena

vena gastroomentalis and vena both are nouns.

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

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

vena gastroomentalis: one of two veins serving the great curvature of the stomach
vena: a blood vessel that carries blood from the capillaries toward the heart

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

vena gastroomentalis (noun)	vena (noun)
one of two veins serving the great curvature of the stomach	a blood vessel that carries blood from the capillaries toward the heart