Sluice — Defs

01 n. 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 o…

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.
“Each sluice of affluent fortune opened soon.” — Harte.

“This home familiarity . . . opens the sluices of sensibility.” — I. Taylor.
3.
The stream flowing through a flood gate.
4.
A long box or trough through which water flows, -- used for washing auriferous earth.(Mining)

Phrases & compounds

Sluice gate — the sliding gate of a sluice.

02 v. t. To emit by, or as by, flood gates.

imp. & p. p. Sluiced; p. pr. & vb. n. Sluicing

1.
To emit by, or as by, flood gates.[R.]
2.
To wet copiously, as by opening a sluice; as, to sluice meadows.
“He dried his neck and face, which he had been sluicing with cold water.” — De Quincey.
3.
To wash with, or in, a stream of water running through a sluice; as, to sluice eart or gold dust in mining.