[ mid-streem ]
/ ˈmɪdˈstrim /


the middle of a stream.
the middle period of a process, course, or the like.

Origin of midstream

First recorded in 1275–1325, midstream is from the Middle English word myddstreme. See mid-, stream
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for midstream

British Dictionary definitions for midstream


/ (ˈmɪdˌstriːm) /


the middle of a stream or river
the middle of a process or actionthey tried to change the rules in midstream

adverb, adjective

in or towards the middle of a stream or rivermoored midstream
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for midstream



also mid-stream, Old English midstream; see mid + stream (n.).

Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with midstream


see change horses midstream.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.