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 (such as water polluted with sewage)

Recent Examples of biochemical oxygen demand from the Web

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First Known Use of biochemical oxygen demand

1914

in the meaning defined above

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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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