释义 |
elu·tri·a·tion \ ̷ ̷ˌ ̷ ̷.trēˈāshən\ noun (-s) Etymology: Latin elutriatus + English -ion 1. : the removal of substances from a mixture by washing and decanting < the elutriation of liquid sludge > 2. : the separation of finer lighter particles from coarser heavier particles in a mixture by means of a usually slow upward stream of fluid so that the lighter particles are carried upward 3. : the washing away of the lighter or finer particles (as of humus or clay) in a soil especially by the splashing of raindrops |