clangour
     n : a loud resonant repeating noise; "he could hear the clang of
         distant bells" [syn: {clang}, {clangor}, {clangoring}, {clank},
          {clash}, {crash}]
     v : make a loud resonant noise; "the alarm clangored throughout
         the building" [syn: {clangor}]
Source: WordNet® 2.0