stalactite

English Thesaurus

1. a cylinder of calcium carbonate hanging from the roof of a limestone cave (noun.object)

hypernym	:	cylinder,
definition	:	a surface generated by rotating a parallel line around a fixed line (noun.shape)

part meronym	:	cave,
definition	:	a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea (noun.object)

substance holonym	:	dripstone,
definition	:	the form of calcium carbonate found in stalactites and stalagmites (noun.substance)