air duct

noun

1
: a duct or pipe for conveying air (as to the rooms of a house or ship for ventilation or to a furnace)
2
: the duct connecting the air bladder and alimentary canal of certain fishes

Word History

First Known Use

1744, in the meaning defined at sense 1

Time Traveler
The first known use of air duct was in 1744

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Cite this Entry

“Air duct.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/air%20duct. Accessed 15 Jul. 2024.

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