Dictionary.com

exostosis

[ ek-so-stoh-sis, -suh- ]
/ ˌɛk sɒˈstoʊ sɪs, -sə- /
Save This Word!

noun, plural ex·os·to·ses [ek-so-stoh-seez, -suh-]. /ˌɛk sɒˈstoʊ siz, -sə-/. Pathology.

the abnormal formation of a bony growth on a bone or tooth.

QUIZZES

QUIZ YOURSELF ON THE MANY TYPES OF NOUNS

They're everywhere you turn, but can you identify the 10 types of nouns easily? This quiz will test your mettle against singular, plural, concrete, abstract, common, proper, collective, compound, countable, and uncountable nouns!
Question 1 of 7
Shoelaces, rainbow, toothpaste, and haircuts are all what type of noun?

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of exostosis

1730–40; <New Latin <Greek exóstōsis an outgrowth. See ex-3, ostosis

OTHER WORDS FROM exostosis

ex·os·tosed, adjectiveex·os·tot·ic [ek-so-stot-ik, -suh-], /ˌɛk sɒˈstɒt ɪk, -sə-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for exostosis

British Dictionary definitions for exostosis

exostosis
/ (ˌɛksɒˈstəʊsɪs) /

noun plural -ses (-siːz)

an abnormal bony outgrowth from the surface of a bone

Word Origin for exostosis

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

Medical definitions for exostosis

exostosis
[ ĕk′sŏ-stōsĭs ]

n. pl. -ses (-sēz)

A projection that is capped by cartilage and arises from a bone that develops from cartilage.hyperostosis poroma
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
FEEDBACK