rumen
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ru·men
(ro͞o′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; akin to Sanskrit romantha-, ruminant, chewing the cud.]
ru′mi·nal adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
rumen
(ˈruːmɛn)n, pl -mens or -mina (-mɪnə)
(Zoology) the first compartment of the stomach of ruminants, behind the reticulum, in which food is partly digested before being regurgitated as cud
[C18: from Latin: throat, gullet]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ru•men
(ˈru mɪn)n., pl. -mi•na (-mə nə)
1. the first stomach of a ruminant, in which food is softened and then regurgitated for cud-chewing.
2. the cud of a ruminant.
[1720–30; < Latin rūmen]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ru·men
(ro͞o′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® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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| Noun | 1. | rumen - the first compartment of the stomach of a ruminant; here food is collected and returned to the mouth as cud for chewing ruminant - any of various cud-chewing hoofed mammals having a stomach divided into four (occasionally three) compartments stomach, tum, tummy, breadbasket - an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion |
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