Definition of downstream in English:


adverb & adjective

  • 1Situated or moving in the direction in which a stream or river flows.

    as adverb ‘the bridge spanned the river just downstream of the rail line’
    as adjective ‘deforestation could have disastrous consequences for downstream regions’
    • ‘All the report said was that the river had been polluted downstream of the sewerage works.’
    • ‘The temperature of the air stream was measured just downstream of the dew point hygrometer using a thermocouple.’
    • ‘The Lower Ure Championships drew a good entry of 65 to the river downstream of Boroughbridge.’
    • ‘We sat along the banks of the Rappahannock River downstream of Fredericksburg for some time while the enemy lurked opposite us.’
    • ‘At about the same time abnormal fish were noticed in rivers in southern England downstream of sewage works.’
    • ‘The pegs on the main river just downstream of where the Darwen enters are also quit suitable for this and, I am happy to report, both have been fishing very well.’
    • ‘After a few metres, you will find yourself in the stream a few metres downstream of the crawl up through the slot mentioned above.’
    • ‘Our Deputy Head asked how far the river was navigable downstream of Hairatan.’
    • ‘Water levels are low and the river downstream of the traps currently holds a large number of fish.’
    • ‘Furthermore, the fact that the river is walled on each side, downstream of bridge, and there are gateposts on the river is also interesting.’
    • ‘When evenings are fair some good fishing is available at Holycross and Ballycamus on the River Suir, downstream of Thurles.’
    • ‘With the rapid currents of the river that flowed downstream, people could place their supplies into many empty barrels and send them to the main camp site a few miles down.’
    • ‘One of the best swims is situated downstream of the caravan park.’
    • ‘No information was available on the effects of altered river flow on wetlands downstream.’
    • ‘They deliberately biased their sample by examining stream and river systems downstream from urban or intense agricultural areas.’
    • ‘A crew of 18 is assembled 50 river miles downstream of Lees Ferry in the Grand Canyon of the Colorado River.’
    • ‘Match anglers on the Ouse this weekend are unlikely to find themselves doing battle with any barbel as most of the action is on the river downstream of York.’
    • ‘I am downwind of the stream, downstream of the mountain.’
    • ‘As a result of water diversion from the upper Jordan by the Israel, there is no fresh water to flow downstream of Tiberias.’
    • ‘The fish have been shoaled in the shallower, faster, water downstream of the numerous weirs that bear testament to the river's industrial heritage.’
    1. 1.1Biology Situated in or toward the part of a sequence of genetic material where transcription takes place later than at a given point.
      ‘a termination signal was found downstream from the coding region’
      • ‘Moreover, the C-terminal region downstream of the zinc fingers is also essential.’
      • ‘In human cells as well, a region directly downstream of the DNA-binding domain appears to have the same function.’
      • ‘The genes that encode these proteins are located immediately downstream of the cos region at the left end of the mature chromosome.’
      • ‘At least for some of these, a direct role downstream of vertebrate Hh proteins has been defined similar to what is seen in flies.’
      • ‘The second element is a region of 50 bp downstream of the promoter.’
    2. 1.2 At a stage in the process of gas or oil extraction and production after the raw material is ready for refining.
      • ‘The other 20 shared common ownership with the downstream (processing or marketing) stages.’
      • ‘Farid of ABB Lummus agrees that downstream petroleum work continues apace.’
      • ‘We may make gains with respect to oil and gas and downstream energy products.’
      • ‘Upstream services include the exploration and production of oil and gas while downstream includes the trading and refining of the products.’
      • ‘However the downstream production of the metals certainly doesn't.’
      • ‘It significantly facilitates downstream purification and allows production at a much larger scale.’
      • ‘After widespread protests it also withdrew its decision to remove the petroleum subsidy and deregulate the downstream petroleum sectors.’
      • ‘Import and export statistics show that the export ratio of the nation's mid- and downstream petrochemical products is gradually rising.’
      • ‘View every person in the organisation as both a supplier to someone in the next downstream process and a customer to someone in the next upstream process.’
      • ‘This, in turn, has pushed CAD both upstream and downstream in the production process.’
      • ‘Shell is predominantly involved in downstream oil production and any hardening of refining margins could lift bottom line profits.’
      • ‘Various strip downstream processing routes for foil stock and foils production were tested on the level of industrial trials.’
      • ‘Therein lies the problem for integrated oil companies like Shell whose operation embraces both upstream and downstream businesses.’
      • ‘Customer satisfaction also involves internal customers, that is, owners of downstream processes.’