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steam jacket

noun
1.
a casing, as on the cylinder of a steam engine, filled with live steam to keep the interior hot.
Origin
1830-1840
1830-40
Related forms
steam-jacketed, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for steam-jacket

steam jacket

noun
1.
(engineering) a jacket containing steam that surrounds and heats a cylinder
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Value for steam

7
8
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