[ oh-mey-suhm ]
/ oʊˈmeɪ səm /
noun, plural o·ma·sa [oh-mey-suh], /oʊˈmeɪ sə/,
the third stomach of a ruminant, between the reticulum and the abomasum; the manyplies.
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Origin of omasum
1700–10; <New Latin, Latin omāsum bullock's tripe
Words nearby omasum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for omasum
Aboma′sum, or Aboma′sus, the fourth stomach of ruminating animals, next the omasum or third stomach.
British Dictionary definitions for omasum
/ (əʊˈmeɪsəm) /
noun plural -sa (-sə)
another name for psalterium
Word Origin for omasum
C18: from Latin: bullock's tripe
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
Scientific definitions for omasum
[ ō-mā′səm ]
The third division of the stomach in ruminant animals. It removes excess water from food and further reduces the size of food particles before passing them to the abomasum for digestion by enzymes. See more at ruminant.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.