DISINTEGRATE v.
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. Marlites are not disintegrated by exposure to the atmosphere, at least in six years. Kirwan.
DISMANTLE v.
trip of furniture and equipments, guns, etc.; to unrig; to strip of walls or outworks; to break down; as, to dismantle a fort, a town, or a ship. A dismantled house, without windows or shutters to keep out the rain. Macaulay.