vena auricularis vs auricular vein

vena auricularis and auricular vein both are nouns.

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

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

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

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