• (n.) The umbilical region. • (n.) The mesogaster.
(mez″o-) (me″zo-gas´tre-әm) the portion of the primordial mesentery that encloses the stomach and from which the greater omentum develops. adj., mesogas´tric., adj.
Mes`o·gas'tri·um noun [ New Latin See Mesogaster .] (Anat.) (a) The umbilical region. (b) The mesogaster. 
Type: Term Pronunciation: mez′ō-gas′trē-ŭm Definitions: 1. In the embryo, the mesentery of the dilated portion of the foregut that is the future stomach; it gives rise to the greater omentum and consequently is involved in the formation of the omental bursa. The spleen and body of the pancreas develop within it, and thus ...