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amoebic dysentrya form of intestinal infection marked by severe diarrhoea and sometimes bleeding. It is caused by the parasitic amoeba Entamoeba histolytica. The disease is transmitted by cysts present in the faeces that are swallowed by a new host.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005