vena anastomotica vs anastomotic vein

vena anastomotica and anastomotic vein both are nouns.

Word	Noun	Adjective	Verb	Adverb
vena anastomotica	Yes	No	No	No
anastomotic vein	Yes	No	No	No

As nouns, vena anastomotica and anastomotic vein are synonyms defined as:

vena anastomotica and anastomotic vein: either of two communicating veins serving the brain

vena anastomotica (noun)	anastomotic vein (noun)
either of two communicating veins serving the brain	either of two communicating veins serving the brain