Definitions

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

  • noun The thin layer of cells lining the medullary cavity of a bone.

from The Century Dictionary.

  • noun In anatomy, the lining membrane of the medullary cavity of a bone; the internal periosteum.
  • noun Cuttlebone.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) The layer of vascular connective tissue lining the medullary cavities of bone.

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

  • noun biology A membranous vascular layer of cells which line the medullary cavity of a bone

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun vascular membrane that lines the inner surface of long bones

Etymologies

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

[New Latin : end(o)– + Greek osteon, bone; see ost- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From endo- + Ancient Greek ὀστέον (osteon, "bone").

Examples

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