petrosal
/pɪˈtroʊsəl/
adjective
- Relating to or located near the petrous part of the temporal bone in the skull, which is hard and dense.
- Doctors studied the petrosal region to understand the patient's hearing loss.
- In anatomy class, we learned about the petrosal part of the temporal bone.
- The petrosal bone protects the inner ear and is one of the hardest bones in the body.
noun
- A bone or part of the skull that is hard and dense, especially the petrous portion of the temporal bone.
- The surgeon carefully removed a small piece of the petrosal during the operation.
- Researchers compared the petrosal of different species to study evolution.
- The fossil included a well-preserved petrosal from an ancient mammal.