01 n. A structure of considerable magnitude, usually with arches or supported on trestles, for carrying a road, as a railroad, high above the gro…
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1.
A structure of considerable magnitude, usually with arches or supported on trestles, for carrying a road, as a railroad, high above the ground or water; a bridge; especially, one for crossing a valley or a gorge. Cf. Trestlework. See: Trestlework