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[mes-uh n-ter-ee, mez-] /ˈmɛs ənˌtɛr i, ˈmɛz-/
noun, plural mesenteries. Anatomy.
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
late Middle English
1375-1425; late Middle English < New Latin mesenterium < Greek mesentérion (equivalent to mes- mes- + entérion, neuter of entérios of the bowel); see enteron
Related forms
mesenteric, adjective
intermesenteric, adjective
postmesenteric, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for mesentery


/ˈmɛsəntərɪ; ˈmɛz-/
noun (pl) -teries
the double layer of peritoneum that is attached to the back wall of the abdominal cavity and supports most of the small intestine
Derived Forms
mesenteric, adjective
Word Origin
C16: from New Latin mesenterium; see meso- + enteron
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for mesentery

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.

Online Etymology Dictionary, © 2010 Douglas Harper
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mesentery in Medicine

mesentery mes·en·ter·y (měz'ən-těr'ē, měs'-)

  1. A double layer of peritoneum attached to the abdominal wall and enclosing in its fold certain organs of the abdominal viscera.

  2. A fold of the peritoneum that connects the intestines to the dorsal abdominal wall, especially such a fold that envelops the jejunum and ileum.

mes'en·ter'ic adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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