red dwarf star

Definitions of red dwarf star
1

n a small, old, relatively cool star; approximately 100 times the mass of Jupiter

Synonyms:
red dwarf
Examples:
Proxima Centauri
the nearest star to the sun; distance: 4.3 light years
Types:
flare star
a red dwarf star in which luminosity can change several magnitudes in a few minutes
Type of:
star
(astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior

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