Gr. Myth. a son of Prometheus: he and his wife, Pyrrha, were the only survivors of a great flood sent by Zeus
See Deucalion in American Heritage Dictionary 4
(do͞o-kāˈlē-ən, dyo͞o-)
noun Greek Mythology
A son of Prometheus who with his wife, Pyrrha, built an ark and floated in it to survive the deluge sent by Zeus. The couple became the ancestors of the renewed human race.