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English definition of “corona”

corona

noun [C usually singular] uk   /kəˈrəʊ.nə/ us    /-ˈroʊ-/ (plural coronae   /-niː/    /-niː/) specialized
a circle of light that can sometimes be seen around the moon at night, or around the sun during an eclipse (= a time when the moon is positioned exactly between the sun and the Earth)
(Definition of corona from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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