Definition of "petrosal" in English

adjective

1. Of great hardness; petrous.

2. (anatomy, relational) Of, pertaining to, or located near the petrous part of the temporal bone or the capsule of the inner ear.

noun

1. (anatomy) The petrous part of the temporal bone at the base of the skull, surrounding the inner ear.

2. (anatomy, zootomy) The auditory capsule.