1. [ noun ] a gate in a sluice that can control the flow of water
Synonyms: floodgate
Related terms: dam
2. [ noun ] regulator consisting of a valve or gate that controls the rate of water flow through a sluice
Synonyms: sluice_valve floodgate penstock head_gate sluicegate
Related terms: regulator aboiteau sluice
Similar spelling:   watergate