The Collaborative International Dictionary
Ripple \Rip"ple\, n.
The fretting or dimpling of the surface, as of running water; little curling waves.
-
A little wave or undulation; a sound such as is made by little waves; as, a ripple of laughter.
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.
Wikipedia
Usage examples of "ripple marks".
We find preserved in shale and slate, limestone, and sandstone, bones, shells, fibres, stems, fruits, footmarks, scratchings and the like, side by side with the ripple marks of the earliest tides and the pittings of the earliest rain-falls.
The descending sun threw out long, crisp shadows, emphasizing ripple marks in the sand.
I used to admire the ripple marks on the sandy bottom, at the north end of this pond, made firm and hard to the feet of the wader by the pressure of the water, and the rushes which grew in Indian file, in waving lines, corresponding to these marks, rank behind rank, as if the waves had planted them.
He had seen the fossil tracks and ripple marks in the sandstone near his house, and guessed rightly enough that they dated from some time near the age to which he had penetrated.
There are in old mud deposits ripple marks caused by liquid water.
He was looking right into it from behind a slab of limestone whose face on his side, was covered with the ripple marks of an ancient sea.
The ripple marks gave no clue to the liquid's speed of fall, but the violence with which the spray erupted from the bottom did.
He sat on white sand that reached beyond sight in graceful ripple marks.