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an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion
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a pouch in many birds and some lower animals that resembles a stomach for storage and preliminary maceration of food
the first compartment of the stomach of a ruminant; here food is collected and returned to the mouth as cud for chewing
the second compartment of the stomach of a ruminant
the third compartment of the stomach of a ruminant
the fourth compartment of the stomach of a ruminant; the one where digestion takes place
a main organ that is situated inside the body
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