stopchecker
nounUK /ˈstɒpˌtʃɛkə/
US /ˈstɑːpˌtʃɛkər/
A stopchecker is a person or tool that checks if things have stopped.
The stopchecker made sure every machine had stopped before the workers went home.
RELATED WORDS
OTHER MEANINGS
2. A device that confirms a machine has fully stopped before it can be restarted.
The stopchecker on the conveyor belt flashed green only when the belt was still.
3. A software routine that verifies a process has ended properly.
The stopchecker logged an error because the program was still running.
4. A person who makes sure traffic has stopped at a crossing.
The stopchecker raised a hand so the children could cross safely.
5. A referee's assistant who confirms play has stopped.
The stopchecker signaled the referee that the ball had gone out.