a flowing together of two or more streams, rivers, or the like: the confluence of the Missouri and Mississippi rivers.
their place of junction: St. Louis is at the confluence of the Missouri and Mississippi rivers.
a body of water formed by the flowing together of two or more streams, rivers, or the like.
a coming together of people or things; concourse.
a crowd or throng; assemblage.

Also con·flux [kon-fluhks] /ˈkɒn flʌks/.

Origin of confluence

1375–1425; late Middle English (< Middle French) < Late Latin confluentia; see confluent, -ence

Synonyms for confluence

4. union, joining, meeting. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of confluence

British Dictionary definitions for confluence


conflux (ˈkɒnflʌks)


a merging or flowing together, esp of rivers
a gathering together, esp of people
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 confluence

early 15c., from Late Latin confluentia, from Latin confluentem (nominative confluens), present participle of confluere "to flow together," from com- "together" (see com-) + fluere "to flow" (see fluent).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for confluence




A flowing or meeting together; a joining.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for confluence



A flowing together of two or more streams or two or more glaciers.
The point of juncture of such streams or glaciers.
The combined stream or glacier formed by this juncture.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.