|1.||[ noun ] a gate in a sluice that can control the flow of water|
|2.||[ noun ] something that restrains a flood or outpouring|
"suspension of surveillance opened the floodgates to illegal immigrants"
|3.||[ noun ] regulator consisting of a valve or gate that controls the rate of water flow through a sluice|
|Synonyms:||sluice_valve penstock head_gate water_gate sluicegate|
|Related terms:||regulator aboiteau sluice|