n. & v.
--n.
1. a channel or tube for conveying fluid, cable, etc.
2 a a tube in the body conveying secretions such as tears etc. b Bot. a tube formed by cells that have lost their intervening end walls, holding air, water, etc.
--v.tr. convey through a duct.
Etymology: L ductus leading, aqueduct f. ducere duct- lead