biochemical oxygen demand
nounDefinition of biochemical oxygen demand
: the oxygen used in meeting the metabolic needs of aerobic microorganisms in water rich in organic matter (such as water polluted with sewage)
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More Definitions for biochemical oxygen demand
biochemical oxygen demand
noun
biochemical oxygen de·mand
| \ -di-ˌmand
\
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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