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air curtain

British  

noun

  1. an air stream across a doorway to exclude draughts, etc

"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

Example Sentences

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The waste is later dumped into a crop grinder or an air curtain burner — an insulated box equipped with a diesel-powered fan that produces less smoke and particulate matter than traditional open burning.

From Los Angeles Times • Apr. 1, 2024

By last week an air curtain had closed African skies to South African Airways, whose proud symbol is a winged springbok, forcing its planes into a tortuous detour.

From Time Magazine Archive

Instead of wrestling with swinging doors, the passenger enters the building through an 89-ft.-wide opening, which has an air curtain to keep out the weather.

From Time Magazine Archive

Kroger's 11-ft.-wide air curtain cost $7,500, will cost about 15� an hour to operate.

From Time Magazine Archive

Snapping down the faceplate of his parka hood, he ran through the protective updraft of the air curtain and charged into the deadly chill of the Antarctic blizzard.

From Unwise Child by Garrett, Randall