from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun 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.
- noun anatomy The
fatty vascular tissuethat fills the cavitiesof bones; the place where new blood cellsare produced.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun very tender and very nutritious tissue from marrowbones
- noun the fatty network of connective tissue that fills the cavities of bones
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