n. | 1. | An artifical passage for water, fitted with a valve or gate, as in a mill stream, for stopping or regulating the flow; also, a water gate or flood gate. |
| 2. | Hence, an opening or channel through which anything flows; a source of supply. |
| 3. | The stream flowing through a flood gate. |
| 4. | (Mining) A long box or trough through which water flows, - used for washing auriferous earth. |
v. t. | 1. | To emit by, or as by, flood gates. |
| 2. | To wet copiously, as by opening a sluice; as, to sluice meadows. |
| 3. | To wash with, or in, a stream of water running through a sluice; as, to sluice eart or gold dust in mining. |