n. [ Heb. ābaddōn destruction, abyss, fr. ābad to be lost, to perish. ] 1. The destroyer, or angel of the bottomless pit; -- the same as Apollyon and Asmodeus. [ 1913 Webster ]

2. Hell; the bottomless pit. [ Poetic ] [ 1913 Webster ]

In all her gates, Abaddon rues
Thy bold attempt. Milton. [ 1913 Webster ]