| downstream | 1. <molecular biology> Portions of DNA or RNA that are more remote from the initiation sites and that will therefore be translated or transcribed later. 2. Shorthand term for things that happen at a late stage in a sequence of reactions. (18 Nov 1997) |
|---|---|
| downstream processing | The various stages of processing that occur after the completion of the fermentation or bioconversion stage, including separation, purification, and packaging of the product. (14 Nov 1997) |