superweapon

/ˈsupərˌwɛpən/
noun
  1. A weapon of extraordinary power, often fictional or hypothetical, capable of massive destruction.
    • The villain's superweapon could destroy entire planets with a single blast.
    • In the movie, the heroes raced to disable the superweapon before it fired.
    • Many science fiction stories feature a superweapon that threatens all civilization.
  2. A real or imagined weapon far more powerful than conventional ones, such as a nuclear bomb or advanced military technology.
    • During the Cold War, both sides raced to develop a superweapon that would end all wars.
    • Some historians consider the atomic bomb the first true superweapon.
    • The new missile system was called a superweapon by military analysts.