vena cerebri

NOUN
12 LETTERS · STARTS WITH V

vena cerebri is a valid 12-letter word worth 18 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
V4E1N1A1C3E1R1E1B3R1I1
4 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 3 + 1 + 1 =18 PTS
DOUBLE WORD → 36TRIPLE WORD → 54
MEANING

What does vena cerebri mean?