Main entry: duct
Definition: an enclosed conduit for a fluid
Main entry: duct, canal, channel, epithelial duct
Definition: a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
Usage: the tear duct was obstructed; the alimentary canal; poison is released through a channel in the snake's fangs
Main entry: duct
Definition: a continuous tube formed by a row of elongated cells lacking intervening end walls