One of the five cities of the Plain, or Circle of the Jordan, which was destroyed by fire (Gen. 19: 24), probably some sort of natural cataclysm.
Citation for Gomorrah
Citation styles are based on the Chicago Manual of Style, 15th Ed., and the MLA Style Manual, 2nd Ed..
MLA
"Gomorrah." In A Dictionary of the Bible. Ed. W. R. F. Browning. Oxford Biblical Studies Online. May 26, 2013. <http://www.oxfordbiblicalcstudies.com/article/opr/t94/e779>.
Chicago
"Gomorrah." In A Dictionary of the Bible. , edited by W. R. F. Browning. Oxford Biblical Studies Online, http://www.oxfordbiblicalcstudies.com/article/opr/t94/e779 (accessed May 26, 2013).