sluicing

noun

1. an artificial channel or passage for water, having a gate or valve at its head to regulate the flow, as in a canal or millstream
2. the water held back by or passing through such a gate
3. a gate or valve used in opening or closing a sluice; floodgate
   also sluice gate
4. any channel, esp. one for excess water
5. ☆ a sloping trough or flume through which water is run, as in washing gold ore, carrying logs, etc.

transitive verb sluiced, sluicing

1. to draw off by or as by means of a sluice
2. 1. to wash with water flowing in or from a sluice
   2. to wash off with a rush of water: to sluice a deck with hoses
3. ☆ to carry (logs, etc.) in a sluice

intransitive verb