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floodgate

English

  1. 🔊 something that restrains a flood or outpouring
    “suspension of surveillance opened the floodgates to illegal immigrants”
  2. 🔊 regulator consisting of a valve or gate that controls the rate of water flow through a sluice

Similar words

sluicegate sluice valve penstock head gate water gate aboideau air lock avenue blowhole channel chute debouch dock gate door egress emunctory escape estuary exhaust exit flood-hatch flume gate head gate