Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun rain-wash
1 sense of rain-wash
Sense 1
rain-wash -- (the washing away of soil or other loose material by rain)
=> washout, wash -- (the erosive process of washing away soil or gravel by water (as from a roadway); "from the house they watched the washout of their newly seeded lawn by the water")