noun
the fourth stomach of a ruminant, such as a cow or sheep, which has multiple compartments for digesting food
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The abomasa is the fourth stomach of a ruminant animal, where further digestion takes place.
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I learned in biology class that cows have multiple stomachs, including the abomasa.
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I can't believe how big the abomasa of that cow was!
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The abomasa of the organization are the various departments that work together to ensure success.