from The Century Dictionary and Cyclopedia
- n. A marking or tracery formed upon any surface by the action of water trickling over it in little rills.
- n. Specifically, in geology, one of the marks left by the rills formed by the retreating waters of a wave which breaks against a shore. Such rills often cut furrows in the sand which, if the sand hardens into rock, may be preserved with great fidelity.
Sorry, no etymologies found.