annihilation

noun

1. (countable, uncountable)The act of destroying or otherwise turning into nothing, or nonexistence.
2. (countable, uncountable)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.

   “the annihilation of a corporation”

3. (countable, uncountable)The state of being annihilated.

   “If you ask how religion thus falls on the thorns and faces death, and in the very act annuls annihilation, I cannot explain the matter, for it is religion's secret, and to understand it you must yourself have been a religious man of the extremer type.”

4. (countable, uncountable)The process of a particle and its corresponding antiparticle combining to produce energy.