• (n.) The ventral piece of the middle segment of the thorax in insects. • (n.) The middle portion, or body, of the sternum.
(from the article `sternum`) In mammals the sternum is divided into three parts, from anterior to posterior: (1) the manubrium, which articulates with the clavicles and first ...
The ventral surface or sclerite of the mesothorax.
(mez″o-) (me″zo-stur´nәm) the middle piece or body of the sternum.
Mes`o·ster'num noun [ Meso- + sternum .] 1. (Anat.) The middle portion, or body, of the sternum. 2. (Zoology) The ventral piece of the middle segment of the thorax in insects. 
Type: Term Pronunciation: mez′ō-ster′nŭm Synonyms: body of sternum