A-băd'don, n.

n. [Heb. abaddōn, destruction, abyss, fr. Heb., Ch., Syr., Sam. abad, to be lost, to perish.] 1. The destroyer, or angel of the bottomless pit; —the same as Apollyon and Asmodeus. Rev. ix. 11. 2. The bottomless pit; the abyss of hell. [Rare.] In all her gates, Abaddon rues Thy bold attempt. Milton.