| Noun | 1. | Escherichia coli - a species of bacterium normally present in intestinal tract of humans and other animals; sometimes pathogenic; can be a threat to food safety Synonyms: E. coli |
Bacteria that cause infection and irritation of the large intestine. The bacteria are spread by unclean water, dirty cooking utensils, or undercooked meat. See also Gastroenteritis.
E. coli, escherichia