1. an organism, especially a bacterium, that does not require air or free oxygen to live (opposed to aerobe).

noun plural -obes or -obia (-ˈəʊbɪə)

  1. an organism that does not require oxygen for respirationCompare aerobe


  1. An organism that can live in the absence of atmospheric oxygen.

  1. An organism, such as a bacterium, that can or must live in the absence of oxygen. Compare aerobe.

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