\Mes`o*gas"tric\, a. [Meso- + gastric.]
1. (Anat.)
   (a) Of or pertaining to the middle region of the abdomen,
       or of the stomach.
   (b) Of or pertaining to the mesogaster.

2. (Zo["o]l.) Of or pertaining to the middle gastric lobe of
   the carapace of a crab.