air duct

noun

1. an enclosure, usually of sheet metal, that conducts heated or conditioned air.

Word History and Origins

Origin of air duct¹

First recorded in 1865–70

Example Sentences

An air duct cleaning addresses all aspects of your system that air crosses over and can improve air quality and efficiency.

From Seattle Times

He recounted how lightning struck a pond near their Wilmington home, struck a wire and entered their residence through air ducts.

From Washington Times

Some of these pollutants settle onto surfaces, while others penetrate fabrics, stick to walls and enter air ducts.

From Salon

Jones told WLBT-TV that Lewis and Spring escaped the jail through an air duct that they entered in the ceiling of a recreation room.

From Seattle Times

Every room in a house, except for kitchens and bathrooms, should have a return air duct as well as one or more supply ducts.

From Seattle Times