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.