bod

bod   (bŏd)    n.   Slang The physical human body; build: "likes brainy men who maintain a good bod" (Catherine Breslin). A person: "When his ancient tank had broken down . . . he had jumped on the back of mine with a few other bods" (Robert Crisp).

Main Entry: biochemical oxygen de·mand
Pronunciation: -di-"mand
Function: noun
: the oxygen used in meeting the metabolic needs of aerobicmicroorganisms in water rich in organic matter (as water polluted with sewage) called also biological oxygen demand, 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. Also called biological oxygen demand.

biochemical oxygen demand   (bī'ō-kěm'ĭ-kəl)  Pronunciation Key  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.

BOD bandwidth on demand biochemical oxygen demand biological oxygen demand board of directors

BOD

the amount of oxygen used by microorganisms in the process of breaking down organic matter in water. The more organic matter there is (e.g., in sewage), the greater the number of microbes. The more microbes there are, the greater the need of oxygen to support them; consequently, less oxygen is available for higher animals such as fishes. The BOD is therefore a reliable gauge of the organic pollution of a body of water. One of the main reasons for treating sewage or waste water prior to its return to a water resource is to lower its BOD-i.e., reduce its need of oxygen and thereby lessen its demand from the streams or rivers into which it is released.

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