exostosis Hear it!

exostosis definition

ex·os·to·sis (eks′äs tō′sis)

noun pl. exostoses -·ses′ (-sēz′)

an abnormal bony growth on the surface of a bone or tooth

Etymology: ModL < Gr exostōsis < ex-, outside + osteon, a bone: see osteo-

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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