- The definition of an amoeba is a one-celled organism, common in water and soil, possessing no set cell organs, structure, or defining shape.
An example of an amoeba is an invisible organism called Entamueba histolytica which is found in tropical areas that are unclean, and causes the deadly disease dysentery.
An example of an amoeba.
nounpl. amoebas or amoebae
- a one-celled, microscopic organism belonging to any of several families of rhizopods that move and feed using pseudopodia and reproduce by fission; esp., any of a genus (Amoeba) found in soil or water or a parasitic genus (Entamoeba) found in higher animals and humans
- something indefinite in shape or perpetually changing, like an amoeba
Origin of amoebaModern Latin ; from Classical Greek amoibē, change ; from ameibein, to change
nounpl. a·moe·bas or a·moe·bae also a·me·bas or a·me·bae
Origin of amoebaNew Latin Amoeba, genus name, from Greek amoibē, change, from ameibein, to change; see mei-1 in Indo-European roots.
(plural amoebae or amoebas)
From Ancient Greek ἀμοιβή (amoibē, “change”), referring to constantly changing shape of these organisms.