Meaning of “disintegrate” - Learner’s Dictionary

disintegrate

verb [ I ] us uk /dɪˈsɪntɪɡreɪt/
BREAK

to break into a lot of small pieces

GET WORSE

to become much worse:

The situation is disintegrating into total chaos.
disintegration noun [ U ] us uk /dɪˌsɪntɪˈɡreɪʃən/

(Definition of “disintegrate” from the Cambridge Learner’s Dictionary © Cambridge University Press)