Greek for ‘the Destroyer’ (so REB) in Rev. 9: 11, and therefore a subtle attack not only on the Greek God Apollo but also on the persecuting emperor Domitian who regarded himself as Apollo on earth.
Citation for Apollyon
Citation styles are based on the Chicago Manual of Style, 15th Ed., and the MLA Style Manual, 2nd Ed..
MLA
"Apollyon." In A Dictionary of the Bible. Ed. W. R. F. Browning. Oxford Biblical Studies Online. May 24, 2013. <http://www.oxfordbiblicalcstudies.com/article/opr/t94/e128>.
Chicago
"Apollyon." In A Dictionary of the Bible. , edited by W. R. F. Browning. Oxford Biblical Studies Online, http://www.oxfordbiblicalcstudies.com/article/opr/t94/e128 (accessed May 24, 2013).