penstock

noun

A sluice or gate used to control a flow of water.

noun

A pipe or conduit used to carry water to a water wheel or turbine.

noun

In hydraulic engin., that part of the channel, conduit, or trough supplying water to a water-wheel which extends between the race and the gate through which the water flows to the wheel. It is generally made of planks or boards bound on the outside with stout timbers.

noun

A hydrant supplying water which is conveyed through a pipe from the source of supply.

noun

The barrel of a pump, in which the piston plays, and through which the water passes up.

noun

A close conduit or pipe for conducting water, as, to a water wheel, or for emptying a pond, or for domestic uses.

noun

The barrel of a wooden pump.

noun

A sluice or pipe which allows the controlled flow of water from behind a dam, typically routing it to a turbine of a power plant.

noun

The barrel of a wooden pump.

noun

regulator consisting of a valve or gate that controls the rate of water flow through a sluice