small intestine

noun Anatomy.
intestine ( def 2 ).

Origin:
1760–70

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
small intestine
 
n
Compare large intestine the longest part of the alimentary canal, consisting of the duodenum, jejunum, and ileum, in which digestion is completed

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

small intestine n.
The narrow, winding, upper part of the intestine where digestion is completed and nutrients are absorbed by the blood. It extends from the pylorus to the cecum and consists of the duodenum, the jejunum, and the ileum.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
small intestine  
The long, narrow, coiled section of the intestine that extends from the stomach to the beginning of the large intestine. Nutrients from food are absorbed into the bloodstream from the small intestine. In mammals, it is made up of the duodenum, jejunum, and ileum.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

small intestine definition


The upper portion of the intestines, extending from the stomach to the large intestine, where the digestion of food takes place. The small intestine is about twenty feet long in adults.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
It is gently moved into the beginning of the large bowel and sometimes into the
  lowest part of the small intestine.
Celiac is a digestive disease that damages the small intestine and interferes
  with absorption of nutrients from food.
Normally, small amounts of bacteria are present in the small intestine and do
  not cause disease.
There are no problems seen with the size or shape of the small intestine.
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