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defecation
(redirected from defecate)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.08 sec.

defecation

 or bowel movement

Elimination of feces from the digestive tract. Peristalsis moves feces through the colon to the rectum, where they stimulate the urge to defecate. The rectum shortens, pushing the feces into the anal canal, where internal and external sphincters allow them to be passed or retained. Chest, abdominal, and pelvic muscles are used to pass them. Long delay of defecation causes constipation and hardened feces. See also diarrhea, incontinence.


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The patient was asked whether she had a history of suppressing the urge to defecate because this habit can result in slowed colonic transit.
Some Johne’s-positive cows will shed dozens of colony-forming units (CFU) of the disease in every gram of manure they defecate.
They roam wherever they want, go into people's yards and even homes, kill birds and defecate wherever they please, including the back patio.
 
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