oto·​scle·​ro·​sis ˌō-tō-sklə-ˈrō-səs How to pronounce otosclerosis (audio)
: growth of spongy bone in the inner ear that causes progressively increasing deafness

Examples of otosclerosis in a Sentence

Recent Examples on the Web Past scholars have attributed the hearing loss to otosclerosis, or possibly lead poisoning from the wines Beethoven preferred. Jennifer Ouellette, Ars Technica, 13 May 2024 This was when Frankie was experiencing hearing issues due to otosclerosis, prior to his surgery. Andy Greene, Rolling Stone, 12 Apr. 2023 There was no evidence found for conditions hypothesized by some experts such as otosclerosis or Paget's disease, Begg said. Fox News, 25 Mar. 2023 Since her teen years, Edinger had slowly been going deaf from otosclerosis, a disease of the inner ear. Leila McNeill, Smithsonian, 1 Mar. 2018 Fabray had otosclerosis, a disease of the bones of the middle and inner ear. Mike Barnes, Billboard, 24 Feb. 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'otosclerosis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


New Latin

First Known Use

1901, in the meaning defined above

Time Traveler
The first known use of otosclerosis was in 1901

Dictionary Entries Near otosclerosis

Cite this Entry

“Otosclerosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/otosclerosis. Accessed 18 Jul. 2024.

Medical Definition


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

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