Xiph·i·ster·num n.; pl. Xiphisterna Anat. (a) The posterior segment, or extremity, of the sternum; -- sometimes called metasternum, ensiform cartilage, ensiform process, or xiphoid process. (b) The xiphiplastron. -- Xiph*i*ster*nal a. ◄ ►
xiphisterna See xiphisternum