Dictionary
biochemical oxygen demand
noun
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)
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First Known Use of BIOCHEMICAL OXYGEN DEMAND
circa 1927
Medical Dictionary
biochemical oxygen demand
noun biochemical oxygen de·mand \-di-ˌmand\
Medical 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
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