Definition of brown dwarf noun from the Oxford Advanced Learner's Dictionary


brown dwarf

BrE BrE//ˌbraʊn ˈdwɔːf//
; NAmE NAmE//ˌbraʊn ˈdwɔːrf//
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an object in space that is between a large planet and a small star in size, and produces heat
See the Oxford Advanced American Dictionary entry: brown dwarf