An object or system disintegrates when it falls apart completely, losing its shape and structure.
When we talk about things falling apart, we often use the word "disintegrated" to describe a situation. Imagine a big factory that used to produce lots of goods but is now empty and broken down – the factory has disintegrated. The same thing can happen with relationships – if people stop communicating or caring for each other, their connection may disintegrate. This usually means it's not coming back together again.
simple past and past participle of disintegrate

The double-odd-buck completely disintegrated the grenade and that, frankly, surprised us all because double-odd-buck is, they're little .38 caliber lead balls and you wouldn't think it would be able to do a whole lot to a steel grenade, but it did.
12:14It's amazing. It disintegrated the outer casing and then, even though this was within its five-second range, did not let it explode the cap so the TNT didn't blow up.
11:57