Aq'ue-dūct, n.
(āk'/we-dūkt) (Synop., §130), n. [Fr. aqueduc; O. Fr. aqueduct (Cotgr.), Lat. aquæductus, from aquæ, gen. of aqua, q. v., and ductus, a leading, from ducere, to lead. See DUKE.]
Sense 1. A conductor, conduit, or artificial channel for conveying water, especially one for supplying large cities with water.
☞ The term is also applied to a structure, similar to the ancient aqueducts, for conveying a canal over a river or hollow; more properly called an aqueduct-bridge.
Sense 2. (Anat.) A canal or passage in parts of the body.