If an object or substance disintegrates, it breaks into many small pieces or parts and is destroyed. At 420 mph the windscreen disintegrated. + disintegration dis·in·te·gra·tion the catastrophic disintegration of the aircraft after the explosion
If something disintegrates, it becomes seriously weakened, and is divided or destroyed. During October 1918 the Austro-Hungarian Empire began to disintegrate. + disintegration dis·in·te·gra·tion the violent disintegration of Yugoslavia
break into parts or components or lose cohesion or unity; "The material disintegrated"; "the group disintegrated after the leader died" lose a stored charge, magnetic flux, or current; "the particles disintegrated during the nuclear fission process" cause to undergo fission or lose particles
To separate into integrant parts; to reduce to fragments or to powder; to break up, or cause to fall to pieces, as a rock, by blows of a hammer, frost, rain, and other mechanical or atmospheric influences