Originally: (perhaps) the stomach. In later use spec.: the abomasum or fourth stomach of a ruminant.

The stomach of an animal or (now British regional or humorous) of a person. Formerly also: spec. †the abomasum or fourth stomach of a ruminant (obs…

transferred. The stomach (of a person or animal). humorous or derisive.

The digestive sac or organs in birds, fishes, insects, and certain reptiles.

The stomach of the gillaroo trout.

The abomasum (fourth stomach) of a ruminant.