sluice /ˈslus/
  水門,水閘,蓄水(vt.)泄洪,沖洗(vi.)奔流
  Sluice 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.
     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. Mining A long box or trough through which water flows, -- used for washing auriferous earth.
  Sluice gate, the sliding gate of a sluice.
  Sluice, v. t. [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.
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  sluice
       n : conduit that carries a rapid flow of water controlled by a
           sluicegate [syn: sluiceway, penstock]
       v 1: pour as if from a sluice; "An aggressive tide sluiced across
            the barrier reef" [syn: sluice down]
       2: irrigate with water from a sluice; "sluice the earth" [syn:
          flush]
       3: transport in or send down a sluice; "sluice logs"
       4: draw through a sluice; "sluice water"