washoff

Etymology
.

Noun

 * 1) The process of material being washed off a surface, for example by rainfall.
 * 2) * 1976, Anthony S. Donigian (Jr.), Norman H. Crawford, Modeling Pesticides and Nutrients on Agricultural Lands (page 41)
 * After application, herbicides persist in the soil until they are degraded to less harmful compounds or are removed from the soil by washoff or leaching.
 * 1) Material transferred by this process.