Surrounding the internal ear; referring to the petrous portion of the temporal bone, or the spaces and tissues in the bony labyrinth that surround the membranous labyrinth. [peri- + G. ous, ear]
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peri·otic .per-ē-'ōt-ik adj situated around the ear
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peri·otic (per″e-oґtik) [peri- + otic] 1. near or around the ear, especially the internal ear. 2. pars petrosa ossis temporalis.Medical dictionary. 2011.