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RUMEN

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ru⋅men

[roo-min]
–noun, plural -mi⋅na [-muh-nuh] .
the first stomach of ruminating animals, lying next to the reticulum.


Origin:
1720–30; < L rūmen throat, gullet
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ru·men   (rōō'mən)   
n.   pl. ru·mi·na (-mə-nə) or ru·mens
The first division of the stomach of a ruminant animal, in which most food collects immediately after being swallowed and from which it is later returned to the mouth as cud for thorough chewing. Also called paunch.

[Latin rūmen, throat.]
ru'mi·nal 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: ru·men
Pronunciation: 'rü-m&n
Function: noun
Inflected Form: plural ru·mi·na /-m&-n&/ or rumens
: the large first compartment of the stomach of a ruminant from which food is regurgitated for rumination and in which cellulose is broken down by the action ofsymbiotic microorganisms called also paunch; —compare ABOMASUM, OMASUM, RETICULUM
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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