exostosis noun. [ɛksɒs'tǝʊsɪs] Pl. -toses [-'tǝʊsi:z]. L16.
[Greek exostōsis outgrowth of bone, formed as EX-² + osteon bone: see -OSIS.]
An outgrowth of bony tissue on a bone.

■ e'xostosed adjective affected with exostosis M18.

■ exostotic [-'tɒtɪk] adjective of, pertaining to, or of the nature of an exostosis M19.

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