dripstone

noun
drip·​stone | \ ˈdrip-ˌstōn How to pronounce dripstone (audio) \

Definition of dripstone

1 : a stone drip (as over a window)
2 : calcium carbonate in the form of stalactites or stalagmites

First Known Use of dripstone

circa 1816, in the meaning defined at sense 1

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