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[roo-min] /ˈru mɪn/
noun, plural rumina
[roo-muh-nuh] /ˈru mə nə/ (Show IPA)
the first stomach of ruminating animals, lying next to the reticulum.
Origin of rumen
First recorded in 1720-30, rumen is from the Latin word rūmen throat, gullet Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for rumen


noun (pl) -mens, -mina (-mɪnə)
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

"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
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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