megalith

[ meg-uh-lith ]

/ ˈmɛg ə lɪθ /

a stone of great size, especially in ancient construction work, as the Cyclopean masonry, or in prehistoric Neolithic remains, as dolmens or menhirs.

Origin of megalith

First recorded in 1850–55; mega- + -lith

meg·a·lith·ic, adjective pre·meg·a·lith·ic, adjective

There are, however, four tombs in the south-east of the island which show some affinity to megalithic work.

Rough Stone Monuments and Their Builders |T. Eric Peet
The megalithic tomb-chamber or the sarcophagus which sometimes replaces it lies in the circular part of the mound.

Rough Stone Monuments and Their Builders |T. Eric Peet
The megalithic chambers within the mound are of three types.

Rough Stone Monuments and Their Builders |T. Eric Peet
Whatever they may be, the megalithic engravings are the earliest graphic historical documents of the country.

Appletons' Popular Science Monthly, February 1899 |Various

The latter is volcanic in origin, and its surface presents no opportunity for the building of megalithic monuments.

Rough Stone Monuments and Their Builders |T. Eric Peet

megalith

/ (ˈmɛɡəlɪθ) /

a stone of great size, esp one forming part of a prehistoric monument See also alignment (def. 6), circle (def. 11)

megalithic, adjective