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kill switch

[kil swich] /ˈkɪl ˌswɪtʃ/
noun
1.
a button, switch, or other mechanism that allows a machine to be shut down immediately:
Only use the kill switch in emergencies.
2.
Digital Technology. a command deployed to remotely lock, disable, or wipe an electronic device, as when the device is lost or stolen.
Origin of kill switch
1950-1960
1950-60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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