airshaft

Etymology

From air + shaft.

airshaft means A vertical (or near vertical) opening (shaft) running from a courtyard to the sky, thus allowing air to circulate to high-rise apartments or offices. Lexicurio rates it Sui generis — a strength score of 89 out of 100.

noun

A vertical (or near vertical) opening (shaft) running from a courtyard to the sky, thus allowing air to circulate to high-rise apartments or offices.“There was a warren of big cabins instead, many levels opening onto walkways around a common airshaft.”
A passage supplying ventilation into a mine tunnel or other underground facility.
A device used for handling winding reels in the processing of web-fed materials, such as in continuous-process printing presses.