the membrane, consisting of a double layer of peritoneum, that invests the intestines, attaching them to the posterior wall of the abdomen, maintaining them in position in the abdominal cavity, and supplying them with blood vessels, nerves, and lymphatics, especially the part of this membrane investing the jejunum and ileum.
Origin of mesentery
1375–1425;late Middle English < New Latinmesenterium < Greekmesentérion (equivalent to mes-mes- + entérion, neuter of entérios of the bowel); see enteron
Related formsmes·en·ter·ic, adjectivein·ter·mes·en·ter·ic, adjectivepost·mes·en·ter·ic, adjective
fold of the peritoneum, early 15c., from medical Latin mesenterium "middle of the intestine," from medical Greek mesenterion, from mesos "middle" (see medial (adj.)) + enteron "intestine" (see enteric). Related: Mesenteric.