Medical Dictionary

biochemical oxygen demand

noun biochemical oxygen de·mand \-di-ˌmand\

Definition of BIOCHEMICAL OXYGEN DEMAND

:  the oxygen used in meeting the metabolic needs of aerobic microorganisms in water rich in organic matter (as water polluted with sewage)—called also biological oxygen demand, oxygen demand
March 29, 2015
discomfit Hear it
To thwart or disconcert
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