Entamoeba histolytica

from The Collaborative International Dictionary of English v.0.48

ameban \ameban\ adj.
   1. of or pertaining to amoebae. Same as {amoeban}. [Also
      spelled {amoeban}.]

   Syn: amoebic, amebic, amoeban, amoebous, amebous
        [WordNet 1.5]

   2. Caused by amoebae; -- of diseases; the more common word is
      {amoebic}. Amoebic dysentry is caused by the amoeba
      {Entamoeba histolytica}.

   Syn: amoebic, amebic
        [PJC]