oto·​scle·​ro·​sis | \ ˌō-tō-sklə-ˈrō-səs How to pronounce otosclerosis (audio) \

Definition of otosclerosis

: growth of spongy bone in the inner ear that causes progressively increasing deafness

Examples of otosclerosis in a Sentence

Recent Examples on the Web

Since her teen years, Edinger had slowly been going deaf from otosclerosis, a disease of the inner ear. Leila Mcneill, Smithsonian, "The Woman Who Shaped the Study of Fossil Brains," 1 Mar. 2018 Fabray had otosclerosis, a disease of the bones of the middle and inner ear. Mike Barnes, Billboard, "Nanette Fabray, Charming Singer, Dancer and Comedienne, Dies at 97," 24 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'otosclerosis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of otosclerosis

1901, in the meaning defined above

History and Etymology for otosclerosis

New Latin

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Time Traveler for otosclerosis

The first known use of otosclerosis was in 1901

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More Definitions for otosclerosis


oto·​scle·​ro·​sis | \ ˌōt-ō-sklə-ˈrō-səs How to pronounce otosclerosis (audio) \
plural otoscleroses\ -​ˌsēz How to pronounce otoscleroses (audio) \

Medical Definition of otosclerosis

: growth of spongy bone in the inner ear where it gradually obstructs the oval window or round window or both and causes progressively increasing deafness

More from Merriam-Webster on otosclerosis

Britannica.com: Encyclopedia article about otosclerosis

Comments on otosclerosis

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something desired as essential

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