Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A structural unit of bone consisting of a haversian canal and corresponding lamellae of compact bone.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun anatomy Any of the central canals, and surrounding bony layers, found in compact bone.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[German Osteon, from Greek osteon, bone; see ost- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek ὀστέον (osteon, "bone").

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