also Her·a·cles or Her·a·kles (hěr'ə-klēz') Greek & Roman Mythology The son of Zeus and Alcmene, a hero of extraordinary strength who won immortality by performing 12 labors demanded by the Argive king Eurystheus.
A constellation in the Northern Hemisphere near Lyra and Corona Borealis.
[Latin, from Greek Hēraklēs : Hērā, Hera + kleos, fame; see kleu- in Indo-European roots.]