Source : WordNet®

glenoid fossa
     n 1: a deep concavity in the temporal bone at the root of the
          zygomatic arch that receives the condyle of the mandible
          [syn: {mandibular fossa}]
     2: the concavity in the head of the scapula that receives the
        head of the humerus to form the shoulder joint [syn: {glenoid
        cavity}]