Definition of aqueduct in English:



  • 1An artificial channel for conveying water, typically in the form of a bridge across a valley or other gap.

    • ‘There is also a visitor centre and beautiful walks next to the River Avon and under the aqueduct carrying the Union Canal.’
    • ‘With local labour and resources, a two and a half kilometre canal, the seguia, was built of reinforced concrete, with a stone aqueduct over the valley that can also carry pedestrians.’
    • ‘At one point, the track ran alongside an aqueduct on a bridge over a road.’
    • ‘Some arch bridges and aqueducts built by the Romans are still standing.’
    • ‘The card is an old picture of what appears to be a Roman aqueduct - a bridge over a river.’
    • ‘A three-span bridge will carry the road over Semington Brook and an aqueduct will be built to take the Kennet and Avon canal over the bypass.’
    • ‘One of the biggest costs involved was the construction of a £1m aqueduct to carry the Kennet and Avon Canal over the road.’
    • ‘Below the weir pool, a 200-year-old aqueduct in honey-coloured stone carries the canal through two right angles across the narrow, wooded valley.’
    • ‘A canal, carried over the Mersey on an aqueduct, was constructed by authority of Parliament.’
    • ‘(The lower level of the aqueduct was intended as a bridge for people to use, and it remains this to this day).’
    • ‘It was the only aqueduct on the Erie Canal to carry both a water trough and a towpath over a river.’
    • ‘From soaring aqueducts, deep tunnels and locks, to weathered stone showing signs of towing lines, some well-known, others not, the network offers visitors an evolving museum on their doorsteps.’
    • ‘A river from the fading distance, which is one mist of collapsed aqueducts and castles, wanders between poplars and pollarded willows.’
    • ‘Police inquiries revealed that he was a keen cyclist - and a bike found earlier this month on the aqueduct crossing the River Lune near Halton has now been identified as his.’
    • ‘The aqueduct at Segovia in Spain is 60 meters high in places.’
    • ‘As it was dark, the storks were sleeping safely in their high roosting places on the tall pillars of the aqueduct.’
    conduit, race, channel, watercourse, waterway, sluice, sluiceway, spillway
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  • 2Anatomy
    A small duct in the body containing fluid.

    • ‘The tumor measured 64 x 35 x 27 mm and extended from the aqueduct to the Cl level of the spinal cord.’
    • ‘The root fibers arising from the trochlear nuclei form a decussation dorsal to the mesencephalic aqueduct, and they are the only cranial nerves that cross completely and that leave the dorsal aspect of the brain stem.’
    • ‘From the lateral ventricles CSF drains into the central third ventricle, and thence through the aqueduct in the midbrain into the fourth ventricle.’
    • ‘While at Queen Square he wrote an MD thesis on the radiology of the aqueduct and fourth ventricle.’


Mid 16th century from obsolete French (now aqueduc), from Latin aquae ductus ‘conduit’, from aqua ‘water’ + ducere ‘to lead’.