洗擦者;洗擦物品
Scourer \Scour"er\, n.
1. One who, or that which, scours.
2. A rover or footpad; a prowling robber.
In those days of highwaymen and scourers.
--Macaulay.
scourer
n 1: someone who cleanses by scouring
2: someone who travels widely and energetically; "he was a
scourer of the seven seas"