Rogets II: The New Thesaurus, Third Edition. 1995.
scour1
VERB:
1. To make a thorough search of: comb, forage, ransack, rummage. Slang :shake down. Idioms: beat the bushes, leave no stone unturned, look (or search) high and low, look (or search) up and down, turn inside out, turn upside down. SeeINVESTIGATE. 2. To remove (an outer layer or adherent matter) by rubbing a surface with considerable pressure: scrape, scrub. SeePUT ON. 3. To rub hard in order to clean: scrub. SeeCLEAN, PUT ON.