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View synonyms for upstream

upstream

[ uhp-streem ]

adverb

  1. toward or in the higher part of a stream; against the current.


adjective

  1. directed upstream; situated upstream:

    an upstream journey; an upstream hideout.

  2. Commerce. of or relating to the early stages in the operations of a business or industry, as exploration and production in the oil business ( downstream ).
  3. against or opposite to the direction of transcription, translation, or synthesis of a DNA, RNA, or protein molecule.

upstream

/ ˈʌpˈstriːm /

adverb

  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 Compare downstream
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of upstream1

First recorded in 1675–85; up- + stream
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Example Sentences

Like a salmon returning upstream.

Aramco did not comment on the letter when contacted by BBC Sport but has previously said it has "one of the lowest upstream carbon footprints in the industry".

From BBC

Less than two months after the removal of dams restored a free-flowing Klamath River, salmon have made their way upstream to begin spawning and have been spotted in Oregon for the first time in more than a century.

Biologists from the California Department of Fish and Wildlife have spotted fall-run Chinook salmon in tributaries miles upstream from where Iron Gate Dam was removed.

Earlier this month, scientists with the nonprofit group California Trout announced they had captured images of the first Chinook salmon swimming upstream from where Iron Gate Dam once stood.

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upstateupstretched