Meaning of “amoeba” in the English Dictionary

"amoeba" in British English

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amoebanoun [ C ]

plural amoebae uk /-biː/ us amoebas US ameba plural amebae or amebas uk /əˈmiː.bə/ us /əˈmiː.bə/
adjective US also amebic uk /əˈmiː.bɪk/ us /əˈmiː.bɪk/


  • The amoebae, one celled animals, smaller than a small pin-head, have existed unchanged since life began.
  • These conditions he has shared with all forms of life from the amoeba to the civilized nation.
  • Up to the present it has been assumed that the environment of the amoeba is that to which it has become adapted and which is favorable to its existence.
  • 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 processes which the amoeba sends out.

(Definition of “amoeba” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"amoeba" in American English

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/əˈmibə/ plural amoebas or amoebae

biology a type of organism that has one cell

(Definition of “amoeba” from the Cambridge Academic Content Dictionary © Cambridge University Press)