The Collaborative International Dictionary
Periotic
Periotic \Per`i*o"tic\, a. [Pref. peri- + Gr. ?, ?, the ear.] (Anat.) Surrounding, or pertaining to the region surrounding, the internal ear; as, the periotic capsule. -- n. A periotic bone.
Wiktionary
periotic
a. (context anatomy English) Surrounding, or pertaining to the region surrounding, the internal ear. n. A bone in the internal ear.