WordNet
rain-wash
n. the washing away of soil or other loose material by rain
Usage examples of "rain-wash".
That night her sleep was deeper than it had been in a long time, deep as she had expected sleep would never be again, and she was not plagued by any dreams at all, not a dream of children suffering, nor of tumbling in a car along a rain-washed street, nor of thousands of windblown dead leaves rattling-hissing along a deserted street and every leaf in fact a jack of spades.