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upstream

   Also found in: Dictionary/thesaurus, Medical, Financial, Acronyms, Wikipedia 0.02 sec.

upstream

From the consumer to the provider. See downstream.

upstream
1. in or towards the higher part of a stream; against the current
2. (in the oil industry) of or for any of the stages prior to oil production, such as exploration or research
upstream [′əp¦strēm]
(chemical engineering)
That portion of a process stream that has not yet entered the system or unit under consideration; for example, upstream to a refinery or to a distillation column.
(hydrology)
Toward the source of a stream.
(networking)upstream - Fewer network hops away from a backbone or hub. For example, a small ISP that connects to the Internet through a larger ISP that has their own connection to the backbone is downstream from the larger ISP, and the larger ISP is upstream from the smaller ISP.


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? Mentioned in ? References in classic literature
 
Then we set out in the launch, turning her nose upstream.
The Lost Continent by Burroughs, Edgar Rice View in context
She could not have forced the heavy dugout upstream against it, and all that was left her was to attempt either to make the shore without being seen by those upon the deck of the Kincaid, or to throw herself upon their mercy--otherwise she must be swept out to sea.
The Beasts of Tarzan by Burroughs, Edgar Rice View in context
It had been imagined that she "would not know," and would think she was traveling upstream.
Pudd'n'head Wilson by Twain, Mark View in context
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