air casing

noun

1
: a casing (as of sheet iron) surrounding a pipe or reservoir with an air space between to prevent transmission of heat
2
: the coaming around the stack of a ship at the weather deck serving to ventilate the boiler room

Word History

First Known Use

1839, in the meaning defined at sense 1

Time Traveler
The first known use of air casing was in 1839

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Dictionary Entries Near air casing

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Cite this Entry

“Air casing.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/air%20casing. Accessed 23 Nov. 2024.

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