rainwash

[ reyn-wosh, -wawsh ]
/ ˈreɪnˌwɒʃ, -ˌwɔʃ /
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noun

material eroded or swept away by rain.

Origin of rainwash

First recorded in 1875–80; rain + wash
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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