[noun] [C] - a long high bridge, usually held up by many arches, which carries a railway or a road over a valley or other similar area at a lower levela railway viaductIt will cost £6 million to repair the viaduct over the Ribblehead valley.He was killed when he drove his car over the edge of the viaduct.
VIADUCT
Meaning of VIADUCT in English
Cambridge English vocab. Кембриджский английский словарь. 2012