petrous /pet·rous/ (pet´rus) resembling a rock; hard; stony.
petrous
pet·rous (p t r s)adj. 1. Of stony hardness. 2. Of or relating to the dense hard portion of the temporal bone that forms a protective case for the inner ear. |
petrous
[pet′rəs]
Etymology: L, petra, rock
resembling a rock or stone.
petrous
resembling rock or stone; stony.
petrous bone
the pars petrosa, or petrous portion of the temporal bone. See also Table 10.
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