Definitions

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

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

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A membranous vascular layer of cells which line the medullary cavity of a bone

from the GNU version of the Collaborative International Dictionary of English

  • n. The layer of vascular connective tissue lining the medullary cavities of bone.

from The Century Dictionary and Cyclopedia

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

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

  • n. vascular membrane that lines the inner surface of long bones

Etymologies

New Latin : end(o)- + Greek osteon, bone; see ost- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From endo- + Ancient Greek ὀστέον (osteon, "bone"). (Wiktionary)

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