Petrosal /(?)/

Pe·tro·sal

Petrosal

a.
  1. Hard; stony; petrous; as, the petrosal bone; petrosal part of the temporal bone. (Anat.)

Phrases & Compounds
Petrosal bone
a bone corresponding to the petrous portion of the temporal bone of man; or one forming more or less of the periotic capsule.

Petrosal

n.
  1. A petrosal bone. (Anat.)