Definition of upstream
- make most of its money upstream, selling cheap crude … to refineries
- —John Quirt
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'upstream.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: in the direction opposite to the flow in a stream, river, etc. : toward the source of a stream, river, etc.
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