exostosis
noun
ex·os·to·sis
ˌek-(ˌ)sä-ˈstō-səs 
plural exostoses
ˌek-(ˌ)sä-ˈstō-ˌsēz
: a spur or bony outgrowth from a bone or the root of a tooth
Examples of exostosis in a Sentence
Recent Examples on the Web
The opinion was unanimous that these were tori, also called exostoses, a benign type of bony overgrowth of the jaw.
—
Dr. Keith Roach, oregonlive, 26 Jan. 2023
An exostosis forms when the ears’ delicate tissues are repeatedly irritated over long periods of time.
—Nathaniel Scharping, Discover Magazine, 14 Aug. 2019
The dense growths are known as external auditory exostoses.
—Ashley Strickland, CNN, 14 Aug. 2019
Cold Water Love catching waves? Surfers and other cold water swimmers are prone to something called exostoses, or small bony growths in the ear canal that develop slowly over time and can prevent sound from getting in.
—Clare Thorp, Cosmopolitan, 2 Aug. 2017
Riley was born with a genetic condition called hereditary multiple exostoses (HME), which causes irregular bone growth.
—George Diaz, OrlandoSentinel.com, 4 July 2017
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Dr. Keith Roach, oregonlive, 26 Jan. 2023
An exostosis forms when the ears’ delicate tissues are repeatedly irritated over long periods of time.
—Nathaniel Scharping, Discover Magazine, 14 Aug. 2019
The dense growths are known as external auditory exostoses.
—Ashley Strickland, CNN, 14 Aug. 2019
Cold Water Love catching waves? Surfers and other cold water swimmers are prone to something called exostoses, or small bony growths in the ear canal that develop slowly over time and can prevent sound from getting in.
—Clare Thorp, Cosmopolitan, 2 Aug. 2017
Riley was born with a genetic condition called hereditary multiple exostoses (HME), which causes irregular bone growth.
—George Diaz, OrlandoSentinel.com, 4 July 2017
Cite this Entry
“Exostosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exostosis. Accessed 29 May. 2025.
Copy CitationMedical Definition
exostosis
noun
ex·os·to·sis
ˌek-(ˌ)säs-ˈtō-səs
plural exostoses
-ˌsēz
: a spur or bony outgrowth from a bone or the root of a tooth
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