Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun penstock

2 senses of penstock

Sense 1
sluicegate, sluice valve, floodgate, penstock, head gate, water gate -- (regulator consisting of a valve or gate that controls the rate of water flow through a sluice)
       => regulator -- (any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc.)

Sense 2
sluice, sluiceway, penstock -- (conduit that carries a rapid flow of water controlled by a sluicegate)
       => conduit -- (a passage (a pipe or tunnel) through which water or electric wires can pass; "the computers were connected through a system of conduits")