scour UK /ˈskaʊə/US /ˈskaʊɚ/verb 8noun 4forms 5phrases 2 verb8 •To clean, polish, or wash (something) by rubbing and scrubbing it vigorously, frequently with an abrasive or cleaning agent.He scoured the burnt food from the pan. •To search an area thoroughly.They scoured the scene of the crime for clues.A search engine will scour the web for you. •To remove debris and dirt (from something) by purging; to sweep along or off by a current of water. •To (cause livestock to) suffer from diarrhoea or dysentery.If a lamb is scouring, do not delay treatment. •To run with speed; to scurry.Lord. Behind the tuft of Pines I met them, neuer Saw I men scowre so on their way: I eyed them Euen to their Ships. — 1610 •To move swiftly over; to brush along. •To clear the digestive tract (of an animal) by administering medication that induces defecation or vomiting; to purge. •(no longer used) To cleanse (something) without rubbing. noun4 •The removal of sediment caused by swiftly moving water.Bridge scour may scoop out scour holes and compromise the integrity of the structure. •Diarrhoea, in livestock; scouring.The Cause and Nature of the Skit, or Scour, of Sheep and Lambs. — 1749 •A place scoured out by running water, as in the bed of a stream below a waterfall.Fish as near the middle of the stream as you can in the spring months, and also on the shallows and scowers; but in the winter, in deep holes; let the bait drag two or three inches on the ground. — 1825 •A place where wool is washed to remove grease and impurities prior to processing. formsscoured · scouring · scoureth · scours · scourest Phrases with scour scour outTo remove by scouring scour upTo scour (something) thoroughly.