Definition of aqueduct

• n. - A conductor, conduit, or artificial channel for conveying water, especially one for supplying large cities with water.
• n. - A canal or passage; as, the aqueduct of Sylvius, a channel connecting the third and fourth ventricles of the brain.
• n. - A conductor, conduit, or artificial channel for conveying water, especially one for supplying large cities with water.
• n. - A canal or passage; as, the aqueduct of Sylvius, a channel connecting the third and fourth ventricles of the brain.