watercourse

[ waw-ter-kawrs, -kohrs, wot-er- ]
/ ˈwɔ tərˌkɔrs, -ˌkoʊrs, ˈwɒt ər- /

noun

a stream of water, as a river or brook.
the bed of a stream that flows only seasonally.
a natural channel conveying water.
a channel or canal made for the conveyance of water.

Origin of watercourse

First recorded in 1500–10; water + course
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for watercourse

watercourse

/ (ˈwɔːtəˌkɔːs) /

noun

a stream, river, or canal
the channel, bed, or route along which this flows
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