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Definition of pilot light noun from the Oxford Advanced Learner's Dictionary

pilot light

noun

/ˈpaɪlət laɪt/

/ˈpaɪlət laɪt/

(also pilot)

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a small flame that burns all the time, for example on a gas boiler, and lights a larger flame when the gas is turned on

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See pilot light in the Oxford Advanced American Dictionary

Check pronunciation: pilot light

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pilot light

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