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corona

noun
🔊/kəˈrəʊnə/
🔊/kəˈrəʊnə/
(plural coronae
🔊/kəˈrəʊniː/
🔊/kəˈrəʊniː/
)
(astronomy天文学)
(also informal halo)
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  1. a ring of light seen around the sun or moon, especially during an eclipse华；（尤指在日食或月食期间的）日冕，日华，月华Topics Spacec2
    Word Originmid 16th cent. : from Latin, ‘wreath, crown’.