vena ethmoidalis vs ethmoidal vein

vena ethmoidalis and ethmoidal vein both are nouns.

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

As nouns, vena ethmoidalis and ethmoidal vein are synonyms defined as:

vena ethmoidalis and ethmoidal vein: veins that drain the ethmoidal sinuses and empty into the superior ophthalmic vein

vena ethmoidalis (noun)	ethmoidal vein (noun)
veins that drain the ethmoidal sinuses and empty into the superior ophthalmic vein	veins that drain the ethmoidal sinuses and empty into the superior ophthalmic vein