Определение isthmian games в Английский Язык Английский Язык словарь
the ancient Panhellenic games held biennially on the Isthmus of Corinth in the first and third years of each Olympiad
In ancient Greece, a festival of athletic and musical competitions in honor of the sea god Poseidon. It was held in the spring of the second and fourth years of each Olympiad at Poseidon's legendary sanctuary on the Isthmus of Corinth. It died out when Christianity became dominant in the 4th century AD