an acute condition of diarrhea, occurring during the hot summer months chiefly in infants and children, caused by bacterial contamination of food and associated with poor hygiene.
summer diarrhea sum·mer diarrhea (sŭm'ər) n. Diarrhea affecting infants or young children in hot weather, usually caused by acute gastroenteritis due to bacterial infection. Also called choleraic diarrhea.
