IPA: /ˈpɛtrəsəl/
KK: /ˈpɛtrəsəl/
Describing something that is connected to or located near a specific part of the skull, particularly the area that houses the inner ear.
The surgeon focused on the petrosal region during the operation to avoid damaging the inner ear.
Petrosal → It is formed from "petrosus" (meaning rocky or stone-like) and the suffix "-al" (meaning pertaining to). The word "petrosal" refers to something that pertains to the petrous part of the temporal bone, which is hard and stone-like in texture.
Think of 'rocky' or 'stone-like' ('petrosus') to remember that 'petrosal' refers to something related to the hard part of the temporal bone.