Definition of idiot light
: a colored light on an instrument panel (as of an automobile) designed to give a warning (as of low oil pressure)
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“Idiot light.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/idiot%20light. Accessed 20 May. 2022.
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Time Traveler for idiot light
The first known use of idiot light was in 1966
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