| biodegradable | A substance that can be chemically degraded via natural effectors such as soil bacteria, weather, plants or animals. (27 Sep 1997) |
|---|---|
| biodegradation | The series of processes by which living systems render chemicals less noxious to the environment. (18 Nov 1997) |
| biodiesel | A biofuel produced through transesterification, a process in which organically- derived oils are combined with alcohol (ethanol or methanol) in the presence of a catalyst to form ethyl or methyl ester. The biomass- derived ethyl or methyl esters can be blended with conventional diesel fuel or used as a neat fuel (100% biodiesel). Biodiesel can be made from soybean or rapeseed oils, animal fats, waste vegetable oils, or microalgae oils. (05 Dec 1998) |
| biodiversity | The existence of a wide range of different types of organisms in a givenplace at a given time. (09 Oct 1997) |
| biodynamic | Relating to biodynamics. (05 Mar 2000) |
| biodynamics | <biology> The doctrine of vital forces or energy. Origin: Gr. Life + E. Dynamics. Source: Websters Dictionary (01 Mar 1998) |