dripstone

Noun dripstone has 2 senses

• dripstone(n = noun.substance) - the form of calcium carbonate found in stalactites and stalagmites;
is a kind of calcium carbonate

• dripstone(n = noun.artifact) hoodmold, hoodmould - a protective drip that is made of stone;
is a kind of drip, drip mold, drip mould