To destroy itself by design (as of a mechanical system).(verb)
A feature of a system whereby it destroys itself.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "autodestruct" in a sentence
"It seems like the computer was always announcing how much time was left until the Starship Enterprise would go into "autodestruct.""
"Why not tell Nassir to set his ships autodestruct sequence and save your boys the trip?"
"Another scaffold protein might have binding sites for proteins that tell a cell to kill itself perhaps sent by immune cells that “perceive” the doomed cell has been invaded by a virus as well as proteins that begin the autodestruct sequence."