Alcyoneus
[ al-sahy-uh-nyoos, -nuh s ]
/ ælˈsaɪ əˌnyus, -nəs /
noun Classical Mythology.
a giant who threw a stone at Hercules and was killed when Hercules hit the stone back with his club.
a giant who, invulnerable in his own country, was dragged by Hercules to another country and there killed.