noun Classical Mythology.
- a sunless abyss, below Hades, in which Zeus imprisoned the Titans.
- a place in Hades for the punishment of the wicked.
noun Greek myth
- an abyss under Hades where the Titans were imprisoned
- a part of Hades reserved for evildoers
- the underworld; Hades
- a primordial god who became the father of the monster Typhon
n.the abyss below Hades in Greek mythology, from Greek Tartaros, of uncertain origin; “prob. a word of imitative origin, suggestive of something frightful” [Klein].