noun, plural a·me·bas, a·me·bae [uh–mee-bee] /əˈmi bi/.
- any of numerous freshwater, marine, or parasitic one-celled protozoa of the order Amoebida, characterized by a granular nucleus surrounded by a jellylike mass of cytoplasm that forms temporary extensions, or pseudopodia, by which the organism moves, engulfs food particles, and forms food vacuoles.
- a protozoan of the genus Amoeba, inhabiting bottom vegetation of freshwater ponds and streams: used widely in laboratory studies.
noun plural -bae (-biː) or -bas
- the usual US spelling of amoeba
n. pl. a•me•bas
- A protozoa of the genus Amoeba and of related genera, occurring in soil and water and parasitic in animals.
- Another spelling of amoeba.