Found 2 items, similar to penstock.
English → English (WordNet) Definition: penstock penstock n 1: regulator consisting of a valve or gate that controls the rate of water flow through a sluice [syn: sluicegate, sluice valve, floodgate, head gate, water gate] 2: conduit that carries a rapid flow of water controlled by a sluicegate [syn: sluice, sluiceway]
English → English (gcide) Definition: Penstock Penstock \Pen"stock\, n. [Etymol. uncertain; perh. fr. pen an inclosure + stock.] 1. A close conduit or pipe for conducting water, as, to a water wheel, or for emptying a pond, or for domestic uses. [1913 Webster] 2. The barrel of a wooden pump. [1913 Webster]