http://wordnik.i2p/words/disintegration
The wearing away or falling to pieces of rocks or strata, produced by atmospheric action, frost, ice, etc. from Wiktionary noun A process by which anything disintegrates. noun The condition of anything which has disintegrated. noun geology A wearing away or falling to pieces of rocks or strata, produced by atmospheric action, frost, ice, etc. from WordNet 3.0 noun the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation noun...