culvert -
a transverse and totally enclosed drain under a road or railway
= synonym
= antonym
= relatert ord
Wiktionary
Substantiv
culvert -
A transverse channel under a road or railway for the draining of water.
Wikipedia
A culvert is a device used to channel water. It may be used to allow water to pass underneath a road, railway, or embankment for example. Culverts can be made of many different materials; steel, polyvinyl chloride (PVC) and concrete are the most common.
