The meaning of DUCT is a bodily tube or vessel especially when carrying the secretion of a gland. How to use duct in a sentence. a bodily tube or vessel especially when carrying the secretion of a gland; a pipe, tube, or channel that conveys a substance… See the full definition. Games; Word of the Day; Grammar ...

DUCT definition: 1. a tube or pipe that carries liquid or air, especially in and out of buildings or through the…. Learn more.