Définitions
1.NounA pipe, tube or canal which carries gas or liquid from one place to another."heating and air-conditioning ducts"
2.NounAn enclosure or channel for electrical cable runs, telephone cables, or other conductors.
3.NounA vessel for conveying lymph or glandular secretions such as tears or bile.
4.NounA tube or elongated cavity (such as a xylem vessel) for conveying water, sap, or air.
5.NounA layer (as in the atmosphere or the ocean) which occurs under usually abnormal conditions and in which radio or sound waves are confined to a restricted path.
6.NounGuidance, direction.
7.VerbTo enclose in a duct.
8.VerbTo channel something (such as a gas) or propagate something (such as radio waves) through a duct or series of ducts.