exostosis

American

[ek-so-stoh-sis, -suh-] / ˌɛk sɒˈstoʊ sɪs, -sə- /

noun

Pathology.

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

exostosis British

/ ˌɛksɒˈstəʊsɪs /

noun

an abnormal bony outgrowth from the surface of a 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

Other Word Forms

Derived Forms

exostosed

adjective
exostotic

adjective

Inflected Forms

noun

exostoses

plural

Etymology

Origin of exostosis

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023