What is the definition or description of: incontinence?

Involuntary leak...: Incontinence denotes involuntary leaks of body wastes from urethra or anus; that from urethra is urinary incontinence, which may be classified as stress, urge, mixed (stress + urge), total, & overflow urinary incontinence, signifying its timing & specifics; that from anus is fecal incontinence, which may be urge, stress, total, etc. reflecting the features of nerve/muscle impairment...