noun
capstone of a cist; dolmen burial chamber
Archaeological term referring to the stone lid of a cist (stone coffin) or the chamber of a dolmen. Rare in everyday conversation.
発掘調査で、石蓋が完全な状態で見つかった。
During the excavation, a capstone was found in perfect condition.
この遺跡の石蓋には線刻画が刻まれている。
The capstone of this site is engraved with line drawings.