Ablution is the act of washing or cleansing the body. Usually it refers to a religious rite, and it can also indicate the liquid used in the rite.
It was in this environment — tense and riddled with suspicion — that Anan says soldiers and police grabbed him, his father and several others at ablution before morning prayers. (USA Today)
Because the mosque itself has what may seem like an off-balanced placement on its lot — it faces Mecca — the new school was designed in relation to that placement, and also in relation to the ablution room. (NY Times)