Entry 2 senses Webster, 1913 Scourer · Scour·er · IPA /ˈskaʊɹəɹ/ 01 n. One who, or that which, scours. 1. One who, or that which, scours. 2. A rover or footpad; a prowling robber. “In those days of highwaymen and scourers.” — Macaulay.