noun \ˈvī-ə-ˌdəkt\

: a long, high bridge that carries a road or railroad over something (such as a valley)

Full Definition of VIADUCT

:  a long elevated roadway usually consisting of a series of short spans supported on arches, piers, or columns

Illustration of VIADUCT

Origin of VIADUCT

Latin via way, road + English aqueduct
First Known Use: 1816


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