MESENTERY

noun (plural -teries) see: inter- Date: 15th century 1. one or more vertebrate membranes that consist of a double fold of the peritoneum and invest the intestines and their appendages and connect them with the dorsal wall of the abdominal cavity, a fold of membrane comparable to a ~ and supporting a viscus (as the heart) that is not a part of the digestive tract, a support or partition in an invertebrate like the vertebrate ~, mesenteric adjective