Source : Webster's Revised Unabridged Dictionary (1913)

Ripple \Rip"ple\, v. i. [imp. & p. p. {Rippled}; p. pr. & vb. n.
   {Rippling}.] [Cf. {Rimple}, {Rumple}.]
   1. To become fretted or dimpled on the surface, as water when
      agitated or running over a rough bottom; to be covered
      with small waves or undulations, as a field of grain.

   2. To make a sound as of water running gently over a rough
      bottom, or the breaking of ripples on the shore.

Source : WordNet®

rippling
     n : a small wave on the surface of a liquid [syn: {ripple}, {riffle},
          {wavelet}]