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exostosis

[ek-so-stoh-sis, -suh-] /ˌɛk sɒˈstoʊ sɪs, -sə-/
noun, plural exostoses
[ek-so-stoh-seez, -suh-] /ˌɛk sɒˈstoʊ siz, -sə-/ (Show IPA).
Pathology.
1.
the abnormal formation of a bony growth on a bone or tooth.
Origin of exostosis
1730-1740
1730-40; < New Latin < Greek exóstōsis an outgrowth. See ex-3, ostosis
Related forms
exostosed, adjective
exostotic
[ek-so-stot-ik, -suh-] /ˌɛk sɒˈstɒt ɪk, -sə-/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for exostosis

exostosis

/ˌɛksɒˈstəʊsɪs/
noun (pl) -ses (-siːz)
1.
an abnormal bony outgrowth from the surface of a bone
Word Origin
C18: via New Latin from Greek, from ex-1 + osteon bone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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exostosis in Medicine

exostosis ex·os·to·sis (ěk'sŏ-stō'sĭs)
n. pl. -ses (-sēz)
A projection that is capped by cartilage and arises from a bone that develops from cartilage. Also called hyperostosis, poroma.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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