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A canal or passage; as, the aqueduct of Sylvius, a channel connecting the third and fourth ventricles of the brain.

e fire chamber of a furnace, for deflecting flame, etc.; -- usually called a bridge wall. Aqueduct bridge. See Aqueduct. -- Asses' bridge, Bascule bridge, Bateau bridge. See under Ass, Bascule, Bateau. -- Bridge of a steamer (Naut.), a narrow platform across the deck, above the rail, for the convenience of the office…

from one place to another; as, stagecoaches, omnibuses, etc., are conveyances; a canal or aqueduct is a conveyance for water. There pipes and these conveyances of our blood. Shak.

A passage; esp., the passage between the third and fourth ventricles in the brain; the aqueduct of Sylvius.

d or superintended a particular command, charge, department, etc.; as, the prefect of the aqueducts; the prefect of a camp, of a fleet, of the city guard, of provisions; the pretorian prefect, who was commander of the troops guarding the emperor's person.

ted and kept for use when wanted, as to supply a fountain, a canal, or a city by means of aqueducts, or to drive a mill wheel, or the like.

eristic of Rome, the Roman people, or things done by Romans; as, Roman fortitude; a Roman aqueduct; Roman art.

to afford, or furnish with, a sufficiency; as, rivers are supplied by smaller streams; an aqueduct supplies an artificial lake; -- often followed by with before the thing furnished; as, to supply a furnace with fuel; to supply soldiers with ammunition.

of water is furnished for useful or ornamental purposes, including dams, sluices, pumps, aqueducts, distributing pipes, fountains, etc.; -- used chiefly in the plural.