headgate

Etymology

From head + gate.

headgate means 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. Lexicurio rates it Sui generis — a strength score of 90 out of 100.

noun

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.
A moveable framework designed to hold still the heads of cattle for various procedures.