rimstone

English

Etymology

From rim +‎ stone.

Noun

rimstone (countable and uncountable, plural rimstones)

1. A secondary mineral deposit, with a stone-wall-like appearance made up of calcite and other minerals, that builds up to create cave pools.

Synonyms

• gour

See also

• flowstone
• stalactite
• stalagmite
• calthemite