Ripple \Rip"ple\, n.

1. The fretting or dimpling of the surface, as of running water; little curling waves. [1913 Webster]

2. A little wave or undulation; a sound such as is made by little waves; as, a ripple of laughter. [1913 Webster]

Ripple grass. (Bot.) See Ribwort.

Ripple marks, a system of parallel ridges on sand, produced by wind, by the current of a steam, or by the agitation of wind waves; also (Geol.), a system of parallel ridges on the surface of a sandstone stratum. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Ripple \Rip"ple\, n.

1. The fretting or dimpling of the surface, as of running water; little curling waves.

2. A little wave or undulation; a sound such as is made by little waves; as, a ripple of laughter.

3. (physics) a small wave on the surface of water or other liquids for which the driving force is not gravity, but surface tension.

4. (Electrical engineering) the residual AC component in the DC current output from a rectifier, expressed as a percentage of the steady component of the current.

Ripple grass. (Bot.) See Ribwort.

Ripple marks, a system of parallel ridges on sand, produced by wind, by the current of a steam, or by the agitation of wind waves; also (Geol.), a system of parallel ridges on the surface of a sandstone stratum.

Source: Webster's Revised Unabridged Dictionary (1913)