penstock meaning and definition

PENSTOCK noun

Definition of penstock (noun)

1. regulator consisting of a valve or gate that controls the rate of water flow through a sluice
   • synonyms: floodgate, head gate, sluice valve, sluicegate, water gate
2. conduit that carries a rapid flow of water controlled by a sluicegate
   • synonyms: sluice, sluiceway