intercostal vein vs vena intercostalis

intercostal vein and vena intercostalis both are nouns.

Word	Noun	Adjective	Verb	Adverb
intercostal vein	Yes	No	No	No
vena intercostalis	Yes	No	No	No

As nouns, intercostal vein and vena intercostalis are synonyms defined as:

intercostal vein and vena intercostalis: several veins draining the intercostal spaces of the rib cage

intercostal vein (noun)	vena intercostalis (noun)
several veins draining the intercostal spaces of the rib cage	several veins draining the intercostal spaces of the rib cage