kill switch
safety mechanism to quickly shut down a system in an emergency, when it cannot be shut down in the usual manner
en-US/ˈkɪl ˈswɪt͡ʃ/
en-GB/ˈkɪl ˈswɪt͡ʃ/
safety mechanism to quickly shut down a system in an emergency, when it cannot be shut down in the usual manner