From MarineBiotech Infopages
Definition of Anoxic:
Depleted of oxygen.
This is the common definition for Anoxic, other definitions can be discussed in the article
Anoxic sediments and anoxic bottom waters are commonly produced where there is a deficiency of oxygen due to very high organic productivity and a lack of oxygen replenishment to the water or sediment, as in the case of stagnation or stratification of a water body.