Upstream (bioprocess)
WordNet

adjective


(1)   In the direction against a stream's current

adverb


(2)   Toward the source or against the current
WiktionaryText

Adjective


upstream
  1. in a direction against the flow of a current or stream; upriver
  2. involving exploration and pre-production rather than refining and selling
  3. in the direction from the client to the server
  4. towards the leading end (5'end) of a DNA molecule
 
x
OK