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Medical Definition of Otocranium
1. The bony case of the internal and middle ear, consisting of the petrous portion of the temporal bone. Origin: oto-+ G. Kranion, cranium (05 Mar 2000)
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1. The bony case of the internal and middle ear, consisting of the petrous portion of the temporal bone. Origin: oto-+ G. Kranion, cranium (05 Mar 2000)