[ oh-tuh-skli-roh-sis ]
/ ˌoʊ tə sklɪˈroʊ sɪs /

noun Pathology.

formation of new bone about the stapes or cochlea, resulting in hearing loss.

Origin of otosclerosis

From New Latin, dating back to 1895–1900; see origin at oto-, sclerosis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Medicine definitions for otosclerosis


[ ō′tō-sklə-rōsĭs ]


A formation of spongy bone about the stapes and the oval window of the ear, causing progressive deafness.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.