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Meaning of ameba

a•me•ba

Pronunciation: (u-mē'bu), [key]
— pl. -bas, -bae
  1. 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.
  2. a protozoan of the genus Amoeba, inhabiting bottom vegetation of freshwater ponds and streams: used widely in laboratory studies.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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