pe·tro·sal (p -tr  sl)adj. Relating to or located near the petrous portion of the temporal bone. [From Latin petr sus, rocky; see petrous.] |
petrosal [pɛˈtrəʊsəl]
adj
(Life Sciences & Allied Applications / Anatomy) Anatomy of, relating to, or situated near the dense part of the temporal bone that surrounds the inner ear
[from Latin petrōsus full of rocks, from petra a rock, from Greek]
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