(transitive) To clean, polish, or wash (something) by rubbing and scrubbing it vigorously, frequently with an abrasive or cleaning agent.

The removal of sediment caused by swiftly moving water. / A place scoured out by running water, as in the bed of a stream below a waterfall.

(transitive) To search an area thoroughly. / (transitive, intransitive) To run with speed; to scurry. / (transitive, intransitive) To move swiftly over; to brush along.

(veterinary medicine) Diarrhea in horses and cattle caused by intestinal infection. / (dated) A place where wool was washed and cleaned.

simple past tense and past participle of scour

Third-person singular simple present indicative form of scour

present participle of scour

The act of cleaning a surface by rubbing it with a brush, soap and water. / Diarrhea. (Now used only of livestock, though also sometimes used of humans into the 1600s.)

plural of scouring

plural of scouring powder