exostosis

noun ex·os·to·sis \ˌek-(ˌ)säs-ˈtō-səs\

plural ex·os·to·ses\-ˌsēz\

Definition of EXOSTOSIS

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

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

First Known Use: 1736

Medical Dictionary

noun ex·os·to·sis \ˌek-(ˌ)säs-ˈtō-səs\

plural ex·os·to·ses \-ˌsēz\

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

—ex·os·tot·ic \-ˈtät-ik\ adjective

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