life-forms characterized by an irregular shape. "Amoeboid" and "amoeba" are often used interchangeably even by biologists, and especially refers to a creature moving by using pseudopods. Most references to "amoebas" or "amoebae" are to amoeboids in general rather than to the specific genus Amoeba. The genus Amoeba and amoeboids in general both derive their names from the ancient Greek word for change. Structure The superclass Rhizopoda has naked and shelled amoebas. They tend to ingest food and… (More on Amoeboid)