sluice

noun

• 1 (also sluice gate) a sliding gate or other device for controlling the flow of water, especially one in a lock gate: the water gushed through the sluices lake levels are now regulated by sluices
• (also sluiceway) an artificial water channel for carrying off overflow or surplus water.
• (in gold mining) a channel or trough constructed with grooves into which a current of water is directed in order to separate gold from the ore containing it.

• 2an act of rinsing or showering with water:a sluice with cold water

verb

• wash or rinse freely with a stream or shower of water:she sluiced her face in cold water crews sluiced down the decks of their ship
• [no object, with adverbial of direction] (of water) pour or flow freely:the waves sluiced over them