upstream
/ʌpˈstɹim/ adjective B2- In a direction against the flow of a current or stream of fluid (typically water); upriver.
- 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.
- Involving exploration and pre-production rather than refining and selling.
- In the direction from the client to the server.
- 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.
- Towards the leading end (5′ end) of a DNA molecule.
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