The Collaborative International Dictionary
Mesogaster
Mesogaster \Mes`o*gas"ter\, n. [NL., fr. Gr. me`sos middle + ? belly.] (Anat.) The fold of peritoneum connecting the stomach with the dorsal wall of the abdominal cavity; the mesogastrium.
Wiktionary
mesogaster
n. (context anatomy English) The fold of peritoneum connecting the stomach with the dorsal wall of the abdominal cavity; the mesogastrium.