| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Biological oxygen demand | Agriculture | See biochemical oxygen demand. (references) | |
| Biological oxygen demand | Environment | 1: An indirect measure of the concentration of biologically degradable material present in organic wastes. It usually reflects the amount of oxygen consumed in five days by biological processes breaking down organic waste. (BOD). (references) | |
| 2: A measure of the oxygen used in meeting the matabolic needs of aerobic microorganisms in water rich in organic matter. (references) | |||
| Biological oxygen demand | Weather | Amount of dissolved oxygen needed by aerobic decomposers to break down the organic materials in a given volume of water at a certain temperature over a specified time period. See BOD5. (references) | |
| Biological Oxygen Demand (BOD) | Administration | (1) The amount of oxygen required to stabilize decomposable matter by aerobic action. (2) (Water Quality) An indirect measure of the concentration of biologically degradable material present in organic wastes. It usually reflects the amount of oxygen consumed in five days by biological processes breaking down organic waste. Also see BOD5. Also referred to as Biochemical Oxygen Demand (BOD). (references) | |
| Biological Oxygen Demand (BOD) | Aerospace | The amount of oxygen used in the biochemical oxidation of organic matter; an indication of compost maturity and a tool for studying the composting process. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
