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Definition of Rumination

Rumination: 1. Regurgitating food after a meal and then swallowing and digesting some of it. Cattle and other ruminant animals have a four-chambered stomach for the rumination of food and so can chew their cud. Some people, particularly infants, engage in something similar by regurgitating food after a meal and then swallowing and digesting some of it. 2. 2. Preoccupation with certain obsessive thoughts.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=12009
Last Editorial Review: 9/20/2012

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