Definition of scour

• v. t. - To rub hard with something rough, as sand or Bristol brick, especially for the purpose of cleaning; to clean by friction; to make clean or bright; to cleanse from grease, dirt, etc., as articles of dress.
• v. t. - To purge; as, to scour a horse.
• v. t. - To remove by rubbing or cleansing; to sweep along or off; to carry away or remove, as by a current of water; -- often with off or away.
• v. t. - To pass swiftly over; to brush along; to traverse or search thoroughly; as, to scour the coast.
• v. i. - To clean anything by rubbing.
• v. i. - To cleanse anything.
• v. i. - To be purged freely; to have a diarrhoea.
• v. i. - To run swiftly; to rove or range in pursuit or search of something; to scamper.
• n. - Diarrhoea or dysentery among cattle.