жен.
1) clean(s)ing
purification
refinement тех.
rectification
2) clearance
freeing
mopping-up воен.
3) тех. refinement
rectification
|| для очистки совести – to set one's mind at ease
for conscience' sake
очистк|а - ж. clearing, cleaning
purification, refining
для ~и совести to set one`s mind at ease
~ от таможенных пошлин торг. clearance