Definition of "omasum" [‖O•ma•sum]

• The third division of the stomach of a ruminant animal, located between the abomasum and the reticulum. Also called manyplies. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "  The third stomach is called the omasum, which means book, and though I could see how someone looking might see pages, for me, the deep longitudinal folds of this stomach were drapes made of terrycloth."
• "The third stomach is called the omasum, which means book, and though I could see how someone looking might see pages, for me, the deep longitudinal folds of this stomach were drapes made of terrycloth."
• "Next, food passes to the omasum, which absorbs more nutrients and further reduces the particle size and water content."