Cave
Of formation.
A geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea.
This concept's ID is @1~48988
Cylinder
- stalactite
A cylinder of calcium carbonate hanging from the roof of a limestone cave.
- stalagmite
A cylinder of calcium carbonate projecting upward from the floor of a limestone cave.
Also contains
- cavern
A large cave or a large chamber in a cave.
- floor
The lower inside surface of any hollow structure; "the floor of the pelvis"; "the floor of...
- grotto
A small cave (usually with attractive features).
- roof
The inner top surface of a covered area or hollow space; "the roof of the cave was very high";...
- wall
A vertical (or almost vertical) smooth rock face (as of a cave or mountain).
- Fingal's Cave
A large cave with basaltic pillars on Staffa island in Scotland.
- Lascaux
A cave in southwestern France that contains Paleolithic paintings.
- cove
Small or narrow cave in the side of a cliff or mountain.