water jacket

noun

: an outer casing which holds water or through which water circulates to cool the interior

specifically : the enclosed space surrounding the cylinder block of an internal combustion engine and containing the cooling liquid

Examples of water jacket in a Sentence

Recent Examples on the Web

Chris also added temperature monitoring that can shut the system down if the water jacket becomes too hot. — Kaif Shaikh, Interesting Engineering, 23 Sep. 2026

His company, and others, provide wet suits, water jackets, life jackets and helmets. — Chris Biderman, Sacramento Bee, 7 June 2024

Instead, there's a water jacket surrounding the plenum chamber. — Don Sherman, Car and Driver, 1 May 2023

Word History

First Known Use

1841, in the meaning defined above

Rhymes for water jacket

• bracket
• packet
• racket
• racquet
• straitjacket