'Metasternum' definitions:

Definition of 'Metasternum'

From: GCIDE
  • Metasternum \Met`a*ster"num\, n. [Pref. meta- + sternum.]
  • 1. (Anat.) The most posterior element of the sternum; the ensiform process; xiphisternum. [1913 Webster]
  • 2. (Zool.) The ventral plate of the third or last segment of the thorax of insects. [1913 Webster] Metastoma

Definition of 'metasternum'

From: GCIDE
  • Xiphisternum \Xiph"i*ster"num\, n.; pl. Xiphisterna. [NL., fr. Gr. xi`fos a sword + sternum.] (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. [1913 Webster]