(n.) The process of elutriating; a decanting or racking off by means of water, as finer particles from heavier.

cleaning out douche douching elution elutriation enema flush flushing flushing out irrigation lathering lavabo lavage lavation laving mopping mopping up rinse rinsing scouring scrub scrubbing scrubbing up shampoo soaping sponge sponging swabbing wash washing washing up washout washup wiping up