scour
/ˈskaʊɚ/ noun C2- The removal of sediment caused by swiftly moving water. · Bridge scour may scoop out scour holes and compromise the integrity of the structure.
- A place scoured out by running water, as in the bed of a stream below a waterfall.
- A place where wool is washed to remove grease and impurities prior to processing.
- Diarrhoea, in livestock; scouring.
Plural scours
From the library
They will scour the jungle for him when he is far away, and we and our children must run when the grass is set alight.
By deliberately narrowing the river channel, the embankments cleverly increased the velocity of the water, thereby helping to scour the riverbed clean of remaining sediment.
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