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.
- To become reduced to components, fragments, or particles.
- To lose cohesion or unity: pressures that cause families to disintegrate
- Physics & Chemistry To decompose, decay, or undergo a nuclear transformation.
- To cause to disintegrate. See Synonyms at decay.