Examples from the Web for waterworn
It consisted of a yellow sandstone in thin strata, covered in some parts with beds of waterworn pebbles.Journal of an Expedition into the Interior of Tropical Australia|Thomas Mitchell
The bed of the river is gravelly, or composed of waterworn stones, which diminish in size as you recede from the mountains.
Seaside and river gravel, which is composed usually of rounded, waterworn pebbles, is unfit for surfacing roads.The Future of Road-making in America|Archer Butler Hulbert
Swallow-holes or waterworn caverns are common in many parts of the limestone region.
The specimen was found on a waterworn surface of the beach, partially covered by shingle….The Appendages, Anatomy, and Relationships of Trilobites|Percy Edward Raymond