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upstream adverb

  /ʌpˈstɹiːm/
  • Against the current.
 a contracorriente, río arriba

upstream adjective

  /ʌpˈstɹiːm/
  • In a direction against the flow of a current or stream of fluid (typically water); upriver.
 a contracorriente, aguas arriba, río arriba
  • (biology) Towards the leading end (5′ end) of a DNA molecule.
 corriente arriba
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