Skip to Content
Medical Term:


Pronunciation: ō′tō-sklĕ-rō′sis

Definition: A disease of the otic capsule (bony labyrinth) characterized by formation of soft, vascular bone and resulting in progressive conductive hearing loss because of fixation of the stapes and sensory hearing loss because of involvement of the cochlear duct.

[oto- + G. sklērōsis, hardening]