- the third stomach of a ruminant, between the reticulum and the abomasum; the manyplies.
Origin of omasum
1700–10; < New Latin, Latin omāsum bullock's tripe
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Examples from the Web for omasum
Aboma′sum, or Aboma′sus, the fourth stomach of ruminating animals, next the omasum or third stomach.
- another name for psalterium
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
- 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.
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