Hiroshima

noun3

1. •
   A prefecture in southwestern Honshu, Japan.
2. •
   The capital city of Hiroshima Prefecture, Japan; the target of the first atomic bomb dropped in warfare on August 6, 1945.

   • A short time ago, an American airplane dropped one bomb on Hiroshima and destroyed its usefulness to the enemy. — 1945
3. •
   (figurative) A catastrophe.

   • Stuxnet is the Hiroshima of cyber-war. — 2011