the oxygen required by aerobic organisms, as those in sewage, for metabolism.
a measure of the organic pollution of water: the amount of oxygen, in mg per litre of water, absorbed by a sample kept at 20°C for five days BOD
biochemical oxygen demand
The amount of oxygen required by aerobic microorganisms to decompose the organic matter in a sample of water, such as one polluted by sewage. It is used as a measure of the degree of water pollution.
of or relating to the effects of climate on living organisms. Historical Examples A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico William E. Duellman
the study of the effects of climate on the biological processes of living organisms. noun the study of the effects of climatic conditions on living organisms
the capability of coexistence with living tissues or organisms without causing harm: Artificial joint adhesives must have biocompatibility with bone and muscle.
the confinement, as by sealed-off chambers, of materials that are harmful or potentially harmful to life. Contemporary Examples Aporkalypse Now: Pig-Killing Virus Could Mean the End of Bacon Carrie Arnold August 19, 2014