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rumen

[roo-min] /ˈru mɪn/
noun, plural rumina
[roo-muh-nuh] /ˈru mə nə/ (Show IPA)
1.
the first stomach of ruminating animals, lying next to the reticulum.
Origin
1720-1730
1720-30; < Latin rūmen throat, gullet
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for rumen
  • We have been breeding cellulosic crops for the rumen animal and have made no progress.
  • The excess of protein-nitrogen in the rumen decreases absorption of magnesium.
  • But parrots don't have a rumen, nor do they rely on bacteria for digestion.
  • rumen microbes could be considered a cow's best friend.
British Dictionary definitions for rumen

rumen

/ˈruːmɛn/
noun (pl) -mens, -mina (-mɪnə)
1.
the first compartment of the stomach of ruminants, behind the reticulum, in which food is partly digested before being regurgitated as cud
Word Origin
C18: from Latin: throat, gullet
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 rumen
n.

"first stomach of a ruminant," 1728, from Latin rumen "the throat," of uncertain origin.

Online Etymology Dictionary, © 2010 Douglas Harper
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rumen in Science
rumen
  (r'mən)   
The first and largest division of the stomach in ruminant animals, in which the food is fermented by microorganisms. See more at ruminant.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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