Source : Webster's Revised Unabridged Dictionary (1913)

Contiguous \Con*tig"u*ous\, a. [L. contiguus; akin to contigere
   to touch on all sides. See {Contingent}.]
   In actual contact; touching; also, adjacent; near;
   neighboring; adjoining.

         The two halves of the paper did not appear fully
         divided . . . but seemed contiguous at one of their
         angles.                                  --Sir I.
                                                  Newton.

         Sees no contiguous palace rear its head. --Goldsmith.

   {Contiguous angles}. See {Adjacent angles}, under {Angle}.

   Syn: Adjoining; adjacent. See {Adjacent}. --
        {Con*tig"u*ous*ly}, adv. -- {Con*tig"u*ous*ness}, n.

Source : WordNet®

contiguousness
     n : the attribute of being so near as to be touching [syn: {adjacency},
          {contiguity}]