Upstream Definition

ŭpstrēm
adverb
In the direction against the current of a stream.
Webster's New World
At an earlier point in a production process or supply chain.
American Heritage
At or toward the beginning of some process, course of activity, etc.
Webster's New World
Synonyms:
Antonyms:
adjective
Being or moving closer to the source of a stream; in the direction opposite to that of the current.
Upstream traffic; an upstream dam.
American Heritage
Earlier in a production process or supply chain.
American Heritage
The definition of upstream is against the current, or toward the beginning.
An example of upstream used as an adjective is the phrase "an upstream swim," which means a swim against the current.
YourDictionary

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

Wiktionary

(computing) In the direction from the client to the server.

Wiktionary
Antonyms:
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other

The signal direction from the customer premises to the network edge. See also downstream.

Webster's New World Telecom

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