defecation
- n the elimination of fecal waste through the anus
- To ensure that no energy is wasted on digestion, the body will sometimes respond by emptying the digestive tract through involuntary vomiting, urination or defecation.
- Constipation exists only if defecation is difficult or painful, or if there is a sense of incompleteness of evacuation.
- Researchers have helped some incontinent patients to gain control of their urination and defecation through biofeedback.