ethmoidal vein vs vena ethmoidalis

ethmoidal vein and vena ethmoidalis both are nouns.

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

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

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

ethmoidal vein (noun)	vena ethmoidalis (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