Anything that resembles a water slide with a gate is a sluice — a narrow channel that controls water flow.

The word originally comes from an old English word meaning a narrow channel that controlled a flow of water, usually to a watermill, and it still has that meaning. A sluice can also mean a splash — often with cold water and usually done with some vigor. A rude, watery slap in the face. Torture victims in movies inevitably have their faces sluiced to bring them round for further questioning.

Definitions of sluice
  1. noun
    conduit that carries a rapid flow of water controlled by a sluicegate
    synonyms: penstock, sluiceway
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    type of:
    a passage (a pipe or tunnel) through which water or electric wires can pass
  2. verb
    pour as if from a sluice
    “An aggressive tide sluiced across the barrier reef”
    synonyms: sluice down
  3. verb
    irrigate with water from a sluice
    sluice the earth”
    synonyms: flush
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    type of:
    douse, dowse, drench, soak, sop, souse
    cover with liquid; pour liquid onto
  4. verb
    draw through a sluice
    sluice water”
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    type of:
    draw, take out
    take liquid out of a container or well
  5. verb
    transport in or send down a sluice
    sluice logs”
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    type of:
    move something or somebody around; usually over long distances
Word Family