Pronunciation: /ˈpɛnˌstɑk/
noun a channel or pipe that carries water to a waterwheel or turbine in a hydroelectric power plant
A1 A penstock is a pipe or channel that carries water to a water wheel.
A2 The penstock controls the flow of water to the hydroelectric power plant.
B1 The penstock was damaged during the storm and needed to be repaired.
B2 The engineers inspected the penstock for any signs of wear and tear.
C1 The construction of the penstock required precise measurements and calculations.
C2 The penstock project was completed ahead of schedule and under budget.
formal The penstock is a crucial component of the hydroelectric power plant.
informal Make sure to close the penstock before starting the turbine.
slang I can't believe the penstock got clogged again, what a pain.
figurative She kept her emotions tightly controlled, like a penstock holding back water.
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