from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The smallest and lowest of the three divisions of the human sternum, which is cartilaginous in early life but usually ossifies by adulthood.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun anatomy The
cartilaginous extensionof the lower sternum; the xiphisternum.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun smallest of the three parts of the breastbone; articulates with the corpus sternum and the seventh rib
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