- 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.
Origin of ameba
Examples from the Web for amoeba
I was invited to see Paul when he performed at a very intimate gig at Amoeba Records in L.A. a few years ago.Why We Heart John Lennon
Martin Lewis, Harvey Weinstein
October 8, 2010
If an amoeba is that large here, what must an elephant look like?
We dropped the ship a few feet but the amoeba did not follow.
It resembled the amoeba which had attacked us, except that the newcomer was red.
It is I—this amoeba, who am addressing you—children of an alien universe.
Amoeboid: applied to movements similar to those of an amoeba.Explanation of Terms Used in Entomology
John. B. Smith
- any protozoan of the phylum Rhizopoda, esp any of the genus Amoeba, able to change shape because of the movements of cell processes (pseudopodia). They live in fresh water or soil or as parasites in man and animals
- the usual US spelling of amoeba
Word Origin and History for amoeba
1855, from Modern Latin Amoeba, genus name (1841), from Greek amoibe "change," related to ameibein "to change, exchange," from PIE *e-meigw-, extended form of root *mei- "to change, go, move" (see mutable). So called for its constantly changing shape. Related: Amoebaean; amoebic.
- Variant ofameba
- A genus of protozoa of the class Sarcodina or Rhizopoda.
- Any of several genera of protozoa that are parasitic in humans, especially Entamoeba.
- A protozoa of the genus Amoeba and of related genera, occurring in soil and water and parasitic in animals.
- Any of various one-celled aquatic or parasitic protozoans of the genus Amoeba or related genera, having no definite form and consisting of a mass of protoplasm containing one or more nuclei surrounded by a flexible outer membrane. Amoebas move by means of pseudopods.
- Another spelling of amoeba.