tailrace

The part of a millrace below the water wheel through which the spent water flows.

A channel for floating away mine tailings and refuse.

The channel in which water runs from a mill after driving the wheel.

See race, n., 6.

The channel in which tailings, suspended in water, are conducted away.

The part of a millrace that carries water away from a water wheel.

The part of a hydropower facility that carries water away from a turbine.

a watercourse that carries water away from a mill or water wheel or turbine