sluice

An artificial channel for conducting water, with a valve or gate to regulate the flow.

A valve or gate used in such a channel; a floodgate.

A body of water impounded behind a floodgate.

A sluiceway.

A long inclined trough, as for carrying logs or separating gold ore.

To flood or drench with or as if with a flow of released water.

To wash with water flowing in a sluice.

To draw off or let out by a sluice.

To send (logs, for example) down a sluice.