Alcyoneus

[al-sahy-uh-nyoos, -nuh s]

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.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019