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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.
amoeba a·moe·ba (ə-mē'bə)
Variant of ameba.
Amoeba A·moe·ba (ə-mē'bə)
n. pl. a·moe·bas or a·moe·bae (-bē)
A genus of protozoa of the class Sarcodina or Rhizopoda.
Any of several genera of protozoa that are parasitic in humans, especially Entamoeba.
Plural amoebas or amoebae (ə-mē'bē)
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.