middle cerebral vein

n.

A vein that accompanies the middle cerebral artery deep into the fissure of Sylvius and empties into the basal vein; deep middle cerebral vein.
A large vein passing along the line of the fissure of Sylvius to join the cavernous sinus; superficial middle cerebral vein.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.