Source : Webster's Revised Unabridged Dictionary (1913)

Track \Track\, v. t. [imp. & p. p. {tracked}; p. pr. & vb. n.
   {tracking}.]
   To follow the tracks or traces of; to pursue by following the
   marks of the feet; to trace; to trail; as, to track a deer in
   the snow.

         It was often found impossible to track the robbers to
         their retreats among the hills and morasses.
                                                  --Macaulay.

   2. (Naut.) To draw along continuously, as a vessel, by a
      line, men or animals on shore being the motive power; to
      tow.

Source : WordNet®

tracked
     adj : having tracks; "new snow tracked by rabbits"; "tracked
           vehicles" [ant: {trackless}]