penstock means 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. Lexicurio rates it Rare gem — a strength score of 77 out of 100.
Etymology
Perhaps from pen (“an enclosure”) + stock.
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.“It amazes him still, this effortless journey powered by the fall of water. Water surging through tunnel and penstock.”
- The barrel of a wooden pump.