amoeba a·moe·ba (ə-mē'bə)
n.
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.
| amoeba (ə-mē'bə) Pronunciation Key
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. |
An animal composed of only one cell that has no fixed shape. It is the best known of the single-celled animals, or protozoa.
Note: The term amoeba is sometimes used to refer to something with an indefinite, changeable shape.