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sternum

Pronunciation: ster'num, -ni, -na

Definition: A long flat bone, articulating with the cartilages of the first seven ribs and with the clavicle, forming the middle part of the anterior wall of the thorax; it consists of three portions: the corpus or body, the manubrium, and the xiphoid process.

Synonym(s): breast bone

[Mod. L. fr. G. sternon, the chest]

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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