mandibular fossa

n.
  1. A deep hollow in the squamous portion of the temporal bone at the base of the zygomatic process in which the condyle of the mandible rests.glenoid fossa
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.