rainwash

English

Etymology

From rain +‎ wash.

Noun

rainwash (countable and uncountable, plural rainwashes)

(geography) The washing action of rain, capable of erosion and transporting soil.
A deposit formed by rain.

Verb

rainwash (third-person singular simple present rainwashes, present participle rainwashing, simple past and past participle rainwashed)

To wash by the action of rain.