- 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.
amoeba definition by Webster's New World
- 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: Modern Latin ; from Classical Greek amoibē, change ; from ameibein, to change
amoeba definition by American Heritage Dictionary
also a·me·banoun pl. a·moe·bas also a·me·bas or a·moe·bae also a·me·bae
Origin: New Latin, genus name, from Greek amoibē, change, from ameibein, to change; see mei-1 in Indo-European roots.
- a·moeˈbic adjective
amoeba - Cultural Definition
An animal composed of only one cell that has no fixed shape. It is the best known of the single-celled animals, or protozoa.
- The term amoeba is sometimes used to refer to something with an indefinite, changeable shape.
amoeba - Medical Definition
noun pl. a·moe·bas or a·moe·bae
- A genus of protozoa of the class Sarcodina or Rhizopoda.
- Any of several genera of protozoa that are parasitic in humans, especially Entamoeba.
amoeba - Science Definition
Plural amoebas amoebas or amoebae