stomach flustomach flu
Acute gastroenteritis with vomiting and diarrhea, usually caused by a virus such as norovirus. It is unrelated to influenza, a respiratory infection.
- attributive form of stomach flu
- stomach-flu runs
(usually uncountable, plural stomach flus)
- (informal) Gastroenteritis.
- Use of this term is proscribed by medical professionals so as to avoid confusion with the flu (influenza).