Definitions

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

  • n. The soft, fatty, vascular tissue that fills most bone cavities and is the source of red blood cells and many white blood cells.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The fatty vascular tissue that fills the cavities of bones; the place where new blood cells are produced.

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

  • n. very tender and very nutritious tissue from marrowbones
  • n. the fatty network of connective tissue that fills the cavities of bones

Etymologies

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