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ileum

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Jejunum
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il⋅e⋅um

  [il-ee-uhm]
–noun, plural il⋅e⋅a  [il-ee-uh] .
1. Anatomy. the third and lowest division of the small intestine, extending from the jejunum to the cecum.
2. Zoology. the anterior portion of the hindgut of an insect or other arthropod.
Use ileum in a Sentence
Origin:
1675–85; < NL, ML īleum, var. of L īlia (neut. pl.) side of the body between hips and groin, guts, appar. by confusion with L īleus ileus

Related forms:
il⋅e⋅al, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.
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Jejunum
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il·e·um   (ĭl'ē-əm)   
n.   pl. il·e·a (-ē-ə)
The terminal portion of the small intestine extending from the jejunum to the cecum.

[Late Latin īleum, groin, flank, variant of Latin īlia.]
il'e·al adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: il·e·um
Pronunciation: 'il-E-&m
Function: noun
Inflected Form: plural il·ea /-E-&/
: the last division of the small intestine that constitutes the part between the jejunum and large intestine and in humans forms the last three fifths of the part of the small intestine beyond the end ofthe duodenum and that is smaller and thinner-walled than the jejunum with fewer circular folds but more numerous Peyer's patches
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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ileum il·e·um (ĭl'ē-əm)
n. pl. il·e·a (-ē-ə)
The third and terminal portion of the small intestine, extending from the jejunum to the cecum.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
ileum   (ĭl'ē-əm)  Pronunciation Key 
Plural ilea
The lower part of the small intestine, connecting the jejunum to the cecum of the large intestine.

ileal adjective
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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