Source : Webster's Revised Unabridged Dictionary (1913)

Bobsled \Bob"sled`\, Bobsleigh \Bob"sleigh`\, n.
   A short sled, mostly used as one of a pair connected by a
   reach or coupling; also, the compound sled so formed. [U. S.]

         The long wagon body set on bobsleds.     --W. D.
                                                  Howells.

Source : WordNet®

bobsleigh
     n 1: formerly two short sleds coupled together [syn: {bobsled}]
     2: a long racing sled (for 2 or more people) with a steering
        mechanism [syn: {bobsled}, {bob}]