Skip to Content
Medical Term:


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]

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