Definition of Petrosal
Pe`tro´sal
a.
1.
(Anat.)
Hard
;
stony
;
petrous
;
as
,
the
petrosal
bone
;
petrosal
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
.
n.
1.
(Anat.)
A
petrosal
bone
.
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