Source : Webster's Revised Unabridged Dictionary (1913)

Ornamentation \Or`na*men*ta"tion\, n.
   1. The act or art of ornamenting, or the state of being
      ornamented.

   2. That which ornaments; ornament. --C. Kingsley.

Source : WordNet®

ornamentation
     n 1: the state of being ornamented
     2: something used to beautify [syn: {decoration}, {ornament}]
     3: the act of adding extraneous decorations to something [syn:
        {embellishment}]