dead man's handle
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Related to dead man's handle: Dead Man's Switch
dead man's handleor
dead man's pedal
(Mechanical Engineering) a safety switch on a piece of machinery, such as a train, that allows operation only while depressed by the operator
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014