Definify.com
Webster 1913 Edition
Petrosal
Pe-tro′sal
,Adj.
[See
Petrous
.] (Anat.)
(a)
Hard; stony; petrous;
as, the
petrosal
bone; petrosal
part of the temporal bone. (b)
Of, pertaining to, or in the region of, the petrous, or petrosal, bone, or the corresponding part of the temporal bone.
Petrosal bone
(Anat.)
, a bone corresponding to the petrous portion of the temporal bone of man; or one forming more or less of the periotic capsule.
Pe-tro′sal
,Noun.
(Anat.)
(a)
A petrosal bone.
(b)
The auditory capsule.
Owen.