self-terminator
nounUK /ˌself ˈtɜːmɪneɪtə/
US /ˌself ˈtɜːrmɪneɪtər/
A self-terminator is something that stops itself on its own.
The toy robot is a self-terminator that turns off when its battery gets too low.
OTHER MEANINGS
2. A program or machine that ends its own process without help.
The app has a self-terminator that closes it after ten minutes of no use.
3. A person who chooses to end their own life.
The story sadly describes him as a self-terminator who felt he had no other way out.
4. A device that destroys itself after it finishes its job.
The spy's gadget was a self-terminator that melted away after sending the message.