| elutriation [ē´lü·trē`ā·shǝn] CHEMICAL ENGINEERING The process of removing substances from a mixture through washing and decanting. ENGINEERING In a mixture, the separation of finer lighter particles from coarser heavier particles through a slow stream of fluid moving upward so that the lighter particles are carried with it. GEOLOGY The washing away of the lighter or finer particles in a soil, especially by the action of raindrops. |