1. scourer(n = noun.person) - someone who cleanses by scouring;
is a kind of cleaner
Derived form verb scour2
2. scourer(n = noun.person) - someone who travels widely and energetically; "he was a scourer of the seven seas"
is a kind of traveler, traveller
1. One who, or that which, scours. [1913 Webster]
2. A rover or footpad; a prowling robber. [1913 Webster]
"In those days of highwaymen and scourers." [1913 Webster]