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Definition of red giant noun from the Oxford Advanced Learner's Dictionary

red giant

noun
 
/ˌred ˈdʒaɪənt/
 
/ˌred ˈdʒaɪənt/
(astronomy)
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  1. a large star towards the end of its life that is relatively cool and gives out a red light
See red giant in the Oxford Advanced American Dictionary
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noun
 
 
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