A genus of parasitic amebae in the superclass Rhizopoda, order Amoebida.
- I. bütschlii a parasitic ameba in the large intestine of man; trophozoites are usually 9–14 μm in diameter; the cysts are usually 8–10 μm in diameter, uninucleate and somewhat irregular in shape, with a thick wall and a large compact mass of glycogen that stains deeply with a solution of iodine; clinically recognizable amebiasis caused by this organism is rare, with symptoms resembling those of chronic disease caused by Entamoeba histolytica; it is also found in other primates and is the commonest ameba of pigs.

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Iod·amoe·ba (.)ī-.ōd-ə-'mē-bə n a genus of amebas commensal in the intestine of mammals including humans and distinguished by uninucleate cysts containing a large glycogen vacuole that stains characteristically with iodine

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Io·da·moe·ba (i-o″də-meґbə) [iod- + ameba] a genus of ramicristate amebae of the order Amoebida, parasitic in mammals; they have a vesicular nucleus with a large chromatin-rich endosome surrounded by a layer of globules, and achromatic strands between the endosome and membrane. Their cysts are usually uninucleate with a large glycogenous vacuole that readily stains brown with iodine.

Medical dictionary. 2011.

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