vena ethmoidalis vs vena

vena ethmoidalis and vena both are nouns.

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

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

vena ethmoidalis: veins that drain the ethmoidal sinuses and empty into the superior ophthalmic vein
vena: a blood vessel that carries blood from the capillaries toward the heart

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

vena ethmoidalis (noun)	vena (noun)
veins that drain the ethmoidal sinuses and empty into the superior ophthalmic vein	a blood vessel that carries blood from the capillaries toward the heart