"Pars petrosa" is a medical term that refers to a specific part of the temporal bone located at the base of the skull. There are several synonyms for "pars petrosa" that are commonly used in medical literature and discussions. These include petrous portion of temporal bone, petrous pyramid, petrous part, and petrosal bone. Each of these terms refers to the same bony structure, which contains various important anatomical structures such as the inner ear and the facial nerve. Understanding these synonyms can help medical professionals communicate more effectively regarding the anatomy of the base of the skull and related pathologies.