Source : Webster's Revised Unabridged Dictionary (1913)

Clangorous \Clan"gor*ous\, a. [LL. clangorosus.]
   Making a clangor; having a ringing, metallic sound.

Source : WordNet®

clangorous
     adj : having a loud resonant metallic sound; "the clangorous
           locomotive works"; "a clanging gong" [syn: {clanging}]