(1) Total destruction
"Bomb tests resulted in the annihilation of the atoll"
(2) The spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
(3) Separation into component parts
(4) In a decomposed state
- A process by which anything disintegrates.
- The condition of anything which has disintegrated.
- A wearing away or falling to pieces of rocks or strata, produced by atmospheric action, frost, ice, etc.