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biochemical oxygen demand

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noun
the oxygen required by aerobic organisms, as those in sewage, for metabolism. Abbreviation: BOD
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Origin of biochemical oxygen demand

First recorded in 1925–30

Words nearby biochemical oxygen demand

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use biochemical oxygen demand in a sentence

British Dictionary definitions for biochemical oxygen demand

biochemical oxygen demand

noun
a measure of the organic pollution of water: the amount of oxygen, in mg per litre of water, absorbed by a sample kept at 20°C for five daysAbbreviation: BOD
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for biochemical oxygen demand

biochemical oxygen demand

n.
The amount of oxygen required by aerobic microorganisms to decompose the organic matter in a sample of water and used as a measure of the degree of water pollution.biological oxygen demand
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for biochemical oxygen demand

biochemical oxygen demand
[ bī′ō-kĕmĭ-kəl ]

The amount of oxygen required by aerobic microorganisms to decompose the organic matter in a sample of water, such as one polluted by sewage. It is used as a measure of the degree of water pollution.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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