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

Browse

July 07, 2015
hoosegow Hear it
jail
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears