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ectostosis

[ek-to-stoh-sis, -tuh-]
noun
  1. the ossification of cartilage that begins under the perichondrium and proceeds inward.
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Origin of ectostosis

Related formsec·tos·te·al [ek-tos-tee-uh l] /ɛkˈtɒs ti əl/, adjectiveec·tos·te·al·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

ectosteal in Medicine

ectosteal

(ĕk-tŏstē-əl)
adj.
  1. Relating to the external surface of a bone.
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ectostosis

(ĕk′tŏs-tōsĭs)
n.
  1. Ossification in cartilage beneath the perichondrium.
  2. The formation of bone beneath the periosteum.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.