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)

Examples of biochemical oxygen demand in a Sentence

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As a result of the initiative, preliminary testing there has shown a 400-percent improvement in biochemical oxygen demand, one of many water quality indicators, the release said. Robert Rhoden, NOLA.com, "St. Tammany, lake foundation targeting broken sewage treatment systems," 31 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biochemical oxygen demand.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of biochemical oxygen demand

1914, in the meaning defined above

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biochar

biochem

biochemical

biochemical oxygen demand

biochemistry

biochip

biochore

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The first known use of biochemical oxygen demand was in 1914

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More Definitions for biochemical oxygen demand

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

More from Merriam-Webster on biochemical oxygen demand

Britannica.com: Encyclopedia article about biochemical oxygen demand

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