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biochemical oxygen demand

3 ENTRIES FOUND:
  1. biochemical oxygen demand (noun)
  2. biological oxygen demand (noun)
  3. oxygen demand (noun)

biochemical oxygen de·mand

noun \-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

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