1 [intransitive and transitive]to break up, or make something break up, into very small pieces:
The plane just disintegrated in mid-air.
2 [intransitive]to become weaker or less united and be gradually destroyed:
a society disintegrating under economic pressures
the disintegration of the Soviet empire into separate republics
WORD FOCUS: break WORD FOCUS: break smashwith a lot of force shatterinto many pieces split into two pieces snapinto two pieces, with a sudden loud noise tearpaper/cloth burstpipe/tyre/balloon crumblebreak into a lot of small pieces disintegratebreak into a lot of small pieces and be destroyed fractureif a bone fractures or you fracture it, it breaks slightly so that a small line appears on the surface ➔ See alsobreak
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.