What is the meaning of air duct?

A duct that provides ventilation (as in mines. ).
- synonyms: air passage, airway

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APA	WordNet. (2010). air duct. Retrieved September 21, 2026, from http://smartdefine.org/air_duct/definitions/1255294
Chicago	WordNet. 2010. "air duct" http://smartdefine.org/air_duct/definitions/1255294 (accessed September 21, 2026).
Harvard	WordNet 2010, air duct, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/air_duct/definitions/1255294>.
MLA	WordNet. "air duct" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/air_duct/definitions/1255294>

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