noun
stadion; stade; stadium
Historical term for an ancient Greek and Roman unit of length (about 185 meters) and the racecourse/stadium of that length. Used in classical studies and historical contexts.
古代ギリシャのスタディオンは約185メートルだった。
The ancient Greek stadion was about 185 meters.
オリンピアのスタディオン跡は有名な遺跡だ。
The remains of the stadium at Olympia are a famous archaeological site.