anaerobic

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anaerobic
1. Of an environment: one in which air (oxygen) is absent. In the case of a depositional environment, one with 0.0–0.1 ml of dissolved oxygen per litre of water. Compare AEROBIC; and DYSAEROBIC.

2. Of an organism: one able to grow only in the absence of oxygen, i.e. an anaerobe.

2. Of a process: one that can occur only in the absence of oxygen.

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