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Definition of heat lightning noun from the Oxford Advanced Learner's Dictionary

heat lightning

noun
 
/ˈhiːt laɪtnɪŋ/
 
/ˈhiːt laɪtnɪŋ/
 [uncountable] (North American English)
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  1. flashes of lightning without thunder, seen in the sky on hot nights
    • Sometimes heat lightning can appear to be orange.
    Topics Weatherc2
See heat lightning in the Oxford Advanced American Dictionary
Check pronunciation: heat lightning

Nearby words

trait
noun
 
 
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