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English definition of “duct”

duct

noun [C] uk   /dʌkt/ us  
a tube or pipe that carries liquid or air, especially in and out of buildings or through the body: Most office buildings have dozens of air ducts and vents. People with blocked tear ducts cannot cry.Vents and ventilation
(Definition of duct from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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