- an organism, especially a bacterium, that does not require air or free oxygen to live (opposed to aerobe).
noun plural -obes or -obia (-ˈəʊbɪə)
- an organism that does not require oxygen for respirationCompare aerobe
- An organism that can live in the absence of atmospheric oxygen.
- An organism, such as a bacterium, that can or must live in the absence of oxygen. Compare aerobe.