trilithons
/traɪˈlɪθɑnz/
noun
- Plural of trilithon; multiple prehistoric structures each consisting of two upright stones and a horizontal capstone.
- Many trilithons have collapsed over the centuries due to weathering.
- The circle contains several trilithons arranged in a horseshoe pattern.
- The site's trilithons are among the best-preserved examples of Neolithic architecture.