middle cerebral vein vs vena cerebri media

middle cerebral vein and vena cerebri media both are nouns.

Word	Noun	Adjective	Verb	Adverb
middle cerebral vein	Yes	No	No	No
vena cerebri media	Yes	No	No	No

As nouns, middle cerebral vein and vena cerebri media are synonyms defined as:

middle cerebral vein and vena cerebri media: either of two cerebral veins

middle cerebral vein (noun)	vena cerebri media (noun)
either of two cerebral veins	either of two cerebral veins