1. (noun)
sluicegate, sluice valve, floodgate, penstock, head gate, water gate
- regulator consisting of a valve or gate that controls the rate of water flow through a sluice Synonyms: sluice, sluice valve, water gate, head gate, sluiceway, sluicegate, penstock, floodgate
2. (noun)
head gate
- a gate upstream from a lock or canal that is used to control the flow of water at the upper end Synonyms: head gate, sluicegate, floodgate, sluice valve, penstock, water gate