: any of a large genus of protozoans that have no permanent cell organs or structures, that change shape to form temporary lobes for moving and taking in food, and that are widespread in fresh and …

An amoeba or ameba / əˈmiːbə / (pl.: amoebas or amebas (less commonly, amoebae or amebae / əˈmiːbi /)), [1] often called an amoeboid, is a type of cell or unicellular organism with the ability to …

We have the one-celled amoeba, the microscopic animals, and the lowest forms of animal life. When such a bacterium comes in contact with an amoeba, it is taken into its body by becoming enclosed in …

Aug 21, 2025 · Amoeba are single-celled creatures capable of simple division-based reproduction. Amoeba, the most basic form of life can be found in seas, rivers, lakes, ponds, and damp soil.

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 …

Aug 23, 2025 · Amoebas are single-celled organisms often perceived as simple blobs, yet they exhibit complex behaviors at a microscopic scale. Found across diverse environments globally, these …

Oct 29, 2020 · An amoeba is animal-like due to certain features such as an absence of cell wall, its inability to produce food, and its capacity to move from one place to another.

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 …

amoeba noun also US ameba /ə ˈmiːbə/ plural amoebas or amoebae /-ˌbiː/ /ə ˈmiːˌbiː/ Britannica Dictionary definition of AMOEBA [count] : a tiny living thing that consists of a single cell

Definition of amoeba noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.