- the middle portion of the vertebrate alimentary canal, posterior to the stomach or gizzard and extending to the cecum, functioning in the digestion and absorption of food; the small intestine.
- the anterior portion of the arthropod colon, composed of endodermal tissue.
- Embryology. the middle part of the embryonic alimentary canal from which the intestines develop.
Origin of midgut
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for midgut
The entrance of the hepatic duct separates fore- and midgut.
The midgut forms a simple loop with a descending and ascending limb closely bound together by mesenteric attachment.
In all forms in which the gland is found it is connected with the post-gastric intestine and marks the beginning of the midgut.
It is well developed in the selachians, forming a triangular body connected with the beginning of the midgut (Fig. 202).
Thus 191 ccal appendages are found surrounding the beginning of the midgut in Scomber scomber.
- the middle part of the digestive tract of vertebrates, including the small intestine
- the middle part of the digestive tract of arthropods
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
- The middle section of the digestive tract in a vertebrate embryo from which the ileum, jejunum, and portions of the duodenum and colon develop.mesenteron
- The middle portion of the digestive tract of certain invertebrates, such as arthropods, that is lined with an enzyme-secreting tissue and that serves as the main site of digestion and absorption.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.