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单词 upstream
释义

upstream

[ uhp-streem ]
/ ˈʌpˈstrim /
SEE SYNONYMS FOR upstream ON THESAURUS.COM

adverb

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

adjective

directed upstream; situated upstream: an upstream journey; an upstream hideout.
Commerce. of or relating to the early stages in the operations of a business or industry, as exploration and production in the oil business (opposed to downstream).
against or opposite to the direction of transcription, translation, or synthesis of a DNA, RNA, or protein molecule.

Origin of upstream

First recorded in 1675–85; up- + stream

Words nearby upstream

upstage, upstairs, upstanding, upstart, upstate, upstream, upstretched, upstroke, up-sum, upsurge, upsweep
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for upstream

British Dictionary definitions for upstream

upstream
/ (ˈʌpˈstriːm) /

adverb, adjective

in or towards the higher part of a stream; against the current
(in the oil industry) of or for any of the stages prior to oil production, such as exploration or researchCompare downstream (def. 2)
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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更新时间:2024/11/11 4:04:11