Bacchus Syllabification: (Bac·chus)Pronunciation: /ˈbäkəs, ˈbak-/ Greek MythologyDefinition of Bacchus another name for Dionysus.Derivatives BacchicPronunciation: /-kik/ adjective Origin:Latin, from Greek BakkhosBacchus in other Oxford dictionaries Definition of Bacchus in the British & World English dictionary