Hypertext Webster Gateway: "petrosal"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Petrosal \Pe*tro"sal\, a. [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.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Petrosal \Pe*tro"sal\, n. (Anat.)
(a) A petrosal bone.
(b) The auditory capsule. --Owen.
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