auricular vein vs vena auricularis

auricular vein and vena auricularis both are nouns.

Word	Noun	Adjective	Verb	Adverb
auricular vein	Yes	No	No	No
vena auricularis	Yes	No	No	No

As nouns, auricular vein and vena auricularis are synonyms defined as:

auricular vein and vena auricularis: one of two veins serving the ear region

auricular vein (noun)	vena auricularis (noun)
one of two veins serving the ear region	one of two veins serving the ear region