doomsday device

About 0.00 uses per million words.

Meaning

1. noun A hypothetical weapon (often a bomb) programmed to automatically be used in response to certain attacks, usually with very dire consequences (such as the annihilation of the world).
2. noun An extremely powerful weapon.

Similar words

doomsday clock doomsday rule doomsday argument dead hand nuclear deterrent death clock d-day euro-deterrent denial-of-service attack combat drone