Answer: scrubbing

AnswerCrossword Clue
scrubbingThoroughly clean one's hands and arms, esp. before performing surgery
scrubbingRub (someone or something) hard so as to clean them, typically with a brush and water
scrubbingRemove dirt by rubbing hard
scrubbing(of a rider) Rub the arms and legs urgently on a horse's neck and flanks to urge it to move faster
scrubbingSCRUB, to rub hard in order to clean
scrubbingRemove impurities from (gas or vapor)
scrubbingCancel or abandon (something)