upstream

In a direction against the flow of a current or stream of fluid (typically water); upriver.

Adjective

  1. In a direction against the flow of a current or stream of fluid (typically water); upriver.
  2. Occurring earlier than something else; (also, usually, especially) being an influence on something else; causing a consequence for something else.
    • Input entry is upstream of input validation in the runtime process.

    1. (oil industry) Involving exploration and pre-production rather than refining and selling.

    2. (computer networking) In the direction from the client to the server.

    3. (software) Maintained, owned, or associated with the original developers of the given software; in contrast to a modified version downstream.

      • The outage was caused by an upstream error in a payments library.
      • You can also check the upstream and/or Debian bug trackers for open and closed bugs and the upstream revision history or newer release(s). - 2013, Matthew Helmke, Ubuntu Unleashed 2013 Edition: Covering 12.10 and 13.04,...
      • If the developer knows the bug is an upstream bug but does not know which bug it is in the upstream bug tracker, he can add an upstream task to the bug report. - 2012, Jono Bacon, The Art of Community: Building the New...

    4. (biology) Towards the leading end (5′ end) of a DNA molecule.

Origin

Etymology tree English up- English stream English upstream From up- + stream.

Forms

further upstream farther upstream furthest upstream farthest upstream

Antonyms

downstream

Derived

upstream loan

Adverb

  1. Against the current.
    • In another moment a huge wave, like a muddy tidal bore, but almost scaldingly hot, came sweeping round the bend up-stream. - 1898, H.G. Wells, The War of the Worlds, London: Heinemann, page 102:

Forms

further upstream farther upstream furthest upstream farthest upstream

Antonyms

downstream

Derived

swim upstream

Noun

  1. Part of the river towards the upstream direction.
    • The total depth of water at the upstream was measured by using a pointer attached to a carriage sitting on the water table walls. - 1957, Proceedings of the Iraqi Scientific Societies - Volumes 1-6 - Page 26:
  2. The original developers or maintainers of software.

Forms

upstreams

Verb

  1. To stream upward.
  2. To have (a software library, patch, etc.) accepted by the original developers of the related software, so that they maintain and distribute it.
    • I'd be more than happy to upstream your patch.

Forms

upstreams upstreaming upstreamed