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red star

noun, Astronomy.
any star with a low surface temperature and a reddish color, as a red giant or a red dwarf.
Origin of red star
1900-05 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Historical Examples
  • One is the F. of hydrogen; another is the red-star line of Jupiter and Saturn.

    History of Astronomy George Forbes

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