Search Result for "culvert": 
Wordnet 3.0

NOUN (1)

1. a transverse and totally enclosed drain under a road or railway; 



The Collaborative International Dictionary of English v.0.48:

Culvert \Cul"vert\ (k?l"v?rt), n. [Prob. from OF. coulouere, F.
   couloir, channel, gutter, gallery, fr. couler to flow. See
   Cullis.]
   A transverse drain or waterway of masonry under a road,
   railroad, canal, etc.; a small bridge.
   [1913 Webster]


WordNet (r) 3.0 (2006):

culvert
    n 1: a transverse and totally enclosed drain under a road or
         railway