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Definition of midstream

midstream

/ˈmɪd.striːm/
mid · stream

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midstream Lexical Profile

midstream Game Scores & Validity

• noun

1

The middle of an ongoing process, activity, or course of action.

Example

"Switching project managers in midstream caused a two-month delay in production."


2

The middle part of a river, stream, or water current, away from either bank.

Example

"The canoe drifted out into midstream where the current was much stronger."

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Antonyms
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• adjective

1

Occurring in or relating to the middle of a process, activity, or course of action.

Example

"The software development team had to make a midstream adjustment to the project timeline."


2

Relating to the processing, storage, and transportation phase of the oil and gas industry, situated between upstream exploration and downstream refining.

Example

"The energy corporation invested heavily in midstream pipeline infrastructure across the region."

Synonyms
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Antonyms
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• adverb

1

In or into the middle of a stream, river, or ongoing course of action.

Example

"It is rarely wise for a company to abandon its core strategy midstream."

Synonyms
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Word Origin & Etymology

From Old English 'middestream', a compound formed from 'midde' (middle) and 'stream' (flowing water). Its figurative sense of being in the middle of an ongoing action was popularized by the 19th-century proverb warning against 'changing horses in midstream'.

Cite this Entry


Wordmom. (2026). Definition of Midstream. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/midstream
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