See Also: Petrosal(medicine)
petrosal(dictionary)
petrosal bone(medicine)
petrosal foramen(medicine)
petrosal vein(medicine)
petrosal sinus(medicine)
petrosal fossa(medicine)
petrosal fossula(medicine)
greater petrosal nerve(medicine)
petrosal impression of the pallium(medicine)

petrosal (iou)



petrosal adjective & noun. M18.
[from Latin petrosus stony, rocky, from petra stone: see -OSE1, -AL1.]
Anatomy.
A. adjective. Designating, belonging to, or connected with the petrous portion of the temporal bone; designating nerves derived from the facial and glosso-pharyngeal nerves that pass through the petrosal bone or are situated in a notch in it. M18.
b. noun. The petrosal bone. M19.