1 exostoses | Definition of exostoses

exostosis

noun
ex·​os·​to·​sis | \ ˌek-(ˌ)sä-ˈstō-səs How to pronounce exostosis (audio) \
plural exostoses\ ˌek-​(ˌ)sä-​ˈstō-​ˌsēz How to pronounce exostoses (audio) \

Definition of exostosis

: a spur or bony outgrowth from a bone or the root of a tooth

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Examples of exostosis in a Sentence

Recent Examples on the Web

The dense growths are known as external auditory exostoses. Ashley Strickland, CNN, "Neanderthals got 'surfer's ear' too, study says," 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, "5 Ways To Protect Your Hearing, Straight From the Professionals," 2 Aug. 2017 Riley was born with a genetic condition called hereditary multiple exostoses (HME), which causes irregular bone growth. George Diaz, OrlandoSentinel.com, "David Ragan gives teen thrill ride at Daytona during bittersweet weekend," 4 July 2017

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

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First Known Use of exostosis

1736, in the meaning defined above

History and Etymology for exostosis

New Latin, from Greek exostōsis, from ex out of + osteon bone — more at ex-, osseous

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More Definitions for exostosis

exostosis

noun
ex·​os·​to·​sis | \ ˌek-(ˌ)säs-ˈtō-səs How to pronounce exostosis (audio) \
plural exostoses\ -​ˌsēz How to pronounce exostoses (audio) \

Medical Definition of exostosis

: a spur or bony outgrowth from a bone or the root of a tooth

Other Words from exostosis

exostotic \ -​ˈtät-​ik How to pronounce exostotic (audio) \ adjective

More from Merriam-Webster on exostosis

Britannica.com: Encyclopedia article about exostosis