Definition of idiot light in English:

idiot light

Line breaks: idiot light

noun

North American informal
  • A warning light that goes on when a fault occurs in a device.
    More example sentences
    • The idiot light for Foxtrot Base just turned red; they are surrounded.
    • For providing an easy-to-use ‘security idiot light’ to Linux system administrators and distributions everywhere, Nmap, we salute you.
    • Other than this high-tech version of a car's idiot light, I saw no other symptoms.

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Word of the day milord
Pronunciation: mɪˈlɔːd
noun
used to address an English nobleman