Definition of defecation
1
: the discharge of solid waste from the anus : the act or process of defecating
To meet the clinical definition of IBS [irritable bowel syndrome], you must have had 12 weeks … of abdominal pain or discomfort within the past year, associated with relief with defecation and a change in the form or frequency of stool. — Food and Fitness Advisor
2
: feces, excrement
At first it was believable because, as Gov. Mario Cuomo said at the outset, "She's covered with defecation, her hair is shorn … "— Ellen Goodman William Allen Livingston lost several ounces of urine and defecation when the fusillade of .38 caliber and .00 buckshot devastated him …— Joseph Wambaugh
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Merriam-Webster unabridged
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Time Traveler for defecation
The first known use of defecation was in 1825
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