pulmonary vein vs vena pulmonalis

pulmonary vein and vena pulmonalis both are nouns.

Word	Noun	Adjective	Verb	Adverb
pulmonary vein	Yes	No	No	No
vena pulmonalis	Yes	No	No	No

As nouns, pulmonary vein and vena pulmonalis are synonyms defined as:

pulmonary vein and vena pulmonalis: any of four veins that carry arterial blood from the lungs to the left atrium of the heart

pulmonary vein (noun)	vena pulmonalis (noun)
any of four veins that carry arterial blood from the lungs to the left atrium of the heart	any of four veins that carry arterial blood from the lungs to the left atrium of the heart