omasum

noun

The third division of the stomach of a ruminant animal, located between the abomasum and the reticulum.

The third stomach of a ruminant; the psalterium or manyplies. See abomasum.

The third division of the stomach of ruminants. See manyplies, and Illust. under ruminant.

The third part of the stomach of a ruminant.

The third compartment of the stomach of a ruminant.