adverb or adjective

on·​stream ˈȯn-ˈstrēm How to pronounce onstream (audio)
: in or into production
plants scheduled to come onstream

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Example Sentences

Recent Examples on the Web The only big developments are in the energy sector, which will see the $400 billion Power of Siberia gas pipeline come onstream this year. Fred Weir, The Christian Science Monitor, 6 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'onstream.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Word History

First Known Use

1930, in the meaning defined above

Time Traveler
The first known use of onstream was in 1930

Dictionary Entries Near onstream

Cite this Entry

“Onstream.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/onstream. Accessed 4 Oct. 2022.

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