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


red giant

BrE BrE//ˌred ˈdʒaɪənt//
; NAmE NAmE//ˌred ˈdʒaɪənt//
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a large star towards the end of its life that is relatively cool and gives out a reddish light
See the Oxford Advanced American Dictionary entry: red giant