(skour) v.t.
1. To clean or brighten by thorough washing and rubbing, as with sand or steel wool.
2. To remove dirt, etc., from; clean: to scour wool.
3. To remove by or as by rubbing away.
4. To clear by means of a strong current of water; flush.
5. To purge the bowels of.
6. To clean (wheat) before milling.
—v.i.
7. To rub something vigorously so as to clean or brighten it.
8. To become bright or clean by rubbing. See synonyms under CLEANSE.
—noun
1. The act of scouring.
2. A place scoured, as by running water.
3. A cleanser used in cleaning wool.
4. Usually plural A watery diarrhea in cattle. [Prob. <MDu. schuren <OF escurer, ult. <L ex- out + curare take care of <cura care]

(skour) v.t.
1. To range over or through, as in making a search.
2. To move or run swiftly over or along.
—v.i.
3. To range about, as in making a search.
4. To move or run swiftly. [ME scoure. Cf. ON skura rush, run.]