Added 9 October 2026 diarrhoea noun Categories: Describing WordsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about diarrhoea at Wordnik → Where our words come from → Frequent and watery bowel movements; can be a symptom of infection or food poisoning or colitis or a gastrointestinal tumor. Related Words: diarrheadiarrhoealdiarrhealcholeraicdysenterylienterictripecholeraexcrementcolliquativescours Back to today's word