I. ˈkəlvə(r)]t, chiefly in dial or substand speech -lbə-; usu ]d.+V noun
( -s )
Etymology: origin unknown
1. : a transverse drain or waterway (as under a road, railroad, or canal)
2. : a conduit for a culvert
3. : a bridge over a culvert
II. transitive verb
( -ed/-ing/-s )
1. : to provide (a road) or bridge (a stream) with a culvert
2. : to channel (a river) underground