outwash

[ out-wosh, -wawsh ]
/ ˈaʊtˌwɒʃ, -ˌwɔʃ /

noun Geology.

the material, chiefly sand or gravel, deposited by meltwater streams in front of a glacier.

Origin of outwash

First recorded in 1890–95; out- + wash
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for outwash

outwash
/ (ˈaʊtˌwɒʃ) /

noun

a mass of gravel, sand, etc, carried and deposited by the water derived from melting glaciers
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