- The act of reducing to nothing, or nonexistence; or
the act of destroying the form or combination of parts under which a
thing exists, so that the name can no longer be applied to it; as, the
annihilation of a corporation. - The state of being annihilated.
Meaning of 'annihilation' (Princeton's WordNet)
1 . annihilation
[ n]
Meaning (1): - total destruction
Example in sentence:
bomb tests resulted in the annihilation of the atoll