rimstone

[ rim-stohn ]
/ ˈrɪmˌstoʊn /

noun Geology.

a calcareous deposit forming a dam at the edge or outlet of an overflowing pool of water, as in a cavern.

Origin of rimstone

First recorded in 1925–30; rim + stone

Words nearby rimstone

rimose, rimouski, rimple, rimrock, rimsky-korsakov, rimstone, rimu, rimula, rimy, rin, rina