megalith
noun
- large stone used to build a structure or monument
Wiktionary
Pronunciation: /ˈmɛɡəlɪθ/ / /ˈmɛɡəˌlɪθ/
noun
Etymology: PIE word *méǵh₂s From mega- (prefix meaning ‘very large, great’) + -lith (suffix meaning ‘stone’), a back-formation from megalithic probably modelled after monolith. from Ancient Greek λίθος (líthos, “stone”)
- A large stone slab making up a prehistoric monument, or part of such a monument.
- A prehistoric monument made up of one or more large stones.
- A large stone or block of stone used in the construction of a modern structure.