D defs.my
Entry 2 senses Webster, 1913

Abaddon

/(ȧ*băd"dŭn)/ · A·bad·don · IPA /əˈbæ.dn̩/
01 n. The destroyer, or angel of the bottomless pit; -- the same as Apollyon and Asmodeus.
  1. 1.
    The destroyer, or angel of the bottomless pit; -- the same as Apollyon and Asmodeus.
  2. 2.
    Hell; the bottomless pit.[Poetic]
    “In all her gates, Abaddon rues Thy bold attempt.” Milton.