adj. in a direction against the flow of a current or stream; upriver
adj. involving exploration and pre-production rather than refining and selling
adj. in the direction from the client to the server
adj. towards the leading end (5'end) of a DNA molecule
ad. against the current
the GNU version of the Collaborative International Dictionary of English
ad. Toward the higher part of a stream; against the current.
The Century Dictionary and Cyclopedia
To stream, flow, or flame up: as, upstreaming flames.
Toward the higher part of a stream; against the current: as, to row up-stream.
Of or pertaining to the upper part of a stream; moving against the current.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. toward the source or against the current
adj. in the direction against a stream's current
Word Usage
"Most of our profitability comes from what we call the upstream business, so we're producing oil from old fields that have been produced for years and years."