downwashedadj.
/ˈdaʊnwɒʃt/, U.S. /ˈdaʊnˌwɔʃt/, /ˈdaʊnˌwɑʃt/ Designating soil, sand, etc., that has been carried downstream by water.
ΚΠ
1906 Geol. Mag. 3 72 Downwashed sand and mud much obscured the section, but the clay appeared to be definitely continuous.
1959 Trans. Inst. Brit. Geographers No. 26 58 No sharp distinction can be made between the deeper soils of the rendzina type, containing abundant downwashed red clay, and the soils developed on the shallower deposits of Clay-with-flints.
2003 Jrnl. Ecol. 91 492/1 Soils are normally grey rendzinas of the Upton series, thin, often rich in downwashed flints and poor in earth-worms.
This entry has been updated (OED Third Edition, December 2018; most recently modified version published online March 2022).
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adj.1906