penstock

noun

pen·​stock ˈpen-ˌstäk 

1

: a sluice or gate for regulating a flow (as of water)

2

: a conduit or pipe for conducting water

Synonyms of penstock

• pipe
• conduit
• tube
• channel

Examples of penstock in a Sentence

a penstock carried water for the waterwheel

Recent Examples on the Web

The project included replacing sections of the penstock, installing new vent piping and constructing a new concrete thrust block. — Daniel Lempres, Sacbee.com, 3 July 2026

That plate sealed the opening of the penstock (water delivery tube) and holds back water from the reservoir. — Logan Smith, CBS News, 22 Feb. 2026

Word History

First Known Use

1543, in the meaning defined at sense 1

Rhymes for penstock

• alcock
• beanstalk
• bedrock
• boardwalk
• catwalk
• cornstalk
• crosswalk
• deadlock
• feedstock
• fetlock
• flintlock
• goshawk

Kids Definition

penstock

noun

pen·​stock ˈpen-ˌstäk 

1

: a gate or valve for regulating a flow (as of water)

2

: a pipe for carrying water