dis- + integrate

source: Janemba's Division For Defense GIF | Gfycat

verb no object

break up into small parts, typically as the result of impact or decay:

〈物が〉崩壊する, 崩れる, ばらばらになる;｟くだけて｠ 〈心身が〉弱る, 衰弱する

e.g. when the missile struck, the car disintegrated in a sheet of searing flame.

(of a society, family, or other social group) weaken or break apart:

«…に» 分解［分裂］する «into»

e.g. the marriage disintegrated amid allegations that she was having an affair.

Physics undergo or cause to undergo disintegration at a subatomic level:

〈放射性原子核が〉崩壊する 〘物理〙

e.g. no object : a meson can spontaneously disintegrate

e.g. with object : it has become a relatively easy matter to disintegrate almost any atom.

disintegrative |-ˌɡrātiv| adjective

disintegrator |disˈin(t)əˌɡrādər| noun