noun
Meaning 1
An upstream gate to an aqueduct, canal, river channel, or irrigation system that can be opened or closed to regulate the flow of water entering a downstream portion of the system.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: tailgate
Broader terms: sluice gate, watergate, water gate, gate