Meaning of omasum

o•ma•sum

Pronunciation: (ō-mā'sum), [key]
— pl. -sa
  1. the third stomach of a ruminant, between the reticulum and the abomasum; the manyplies. See diag. under
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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