ectostosis

[ ek-to-stoh-sis, -tuh- ]
/ ˌɛk tɒˈstoʊ sɪs, -tə- /

noun

the ossification of cartilage that begins under the perichondrium and proceeds inward.

Origin of ectostosis

Related forms

ec·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. 2019

Medicine definitions for ectosteal (1 of 2)

ectosteal

[ ĕk-tŏstē-əl ]

adj.

Relating to the external surface of a bone.

Medicine definitions for ectosteal (2 of 2)

ectostosis

[ ĕk′tŏs-tōsĭs ]

n.

Ossification in cartilage beneath the perichondrium.
The formation of bone beneath the periosteum.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.