stalactite
noun/ˈstæləktaɪt/
/stəˈlæktaɪt/
- a long pointed piece of rock hanging down from the roof of a cave (= a hollow place underground), formed over a long period of time as water containing lime runs off the roof compare stalagmiteWord Originlate 17th cent.: from modern Latin stalactites, from Greek stalaktos ‘dripping’, based on stalassein ‘to drip’.
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stalactite