adverb or adjective up·stream \ˈəp-ˈstrēm\

: in the direction opposite to the flow in a stream, river, etc. : toward the source of a stream, river, etc.

Full Definition of UPSTREAM

:  in the direction opposite to the flow of a stream
:  in or to a position within the production stream closer to manufacturing processes <make most of its money upstream, selling cheap crude … to refineries — John Quirt>

First Known Use of UPSTREAM

UPSTREAM Defined for Kids


adverb up·stream \ˈəp-ˈstrēm\

Definition of UPSTREAM for Kids

:  at or toward the beginning of a stream <She rowed upstream.>
Medical Dictionary


adverb or adjective up·stream \ˈəp-ˈstrēm\

Medical Definition of UPSTREAM

:  in a direction along a molecule of DNA or RNA opposite to that in which transcription and translation take place and toward the end having a phosphate group attached to the position labeled 5′ in the terminal nucleotide <a small coding sequence is located just upstream from each…gene—J. N. Goldman et al>—compare downstream


Next Word in the Dictionary: upstreetPrevious Word in the Dictionary: upstraightAll Words Near: upstream
July 05, 2015
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