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Definition of Entamoeba histolytica
Medically reviewed by Min Clinic Staff | Updated: January 2026
Entamoeba histolytica: The agent of amebic dysentery, a disorder with inflammation of the intestine and ulceration of the colon. Entamoeba histolytica is a single-celled parasite that is transmitted to humans via contaminated water and food. It can also infect the liver and other organs.