flare star

Definitions of flare star
1

n a red dwarf star in which luminosity can change several magnitudes in a few minutes

Examples:
Proxima Centauri
the nearest star to the sun; distance: 4.3 light years
Type of:
red dwarf, red dwarf star
a small, old, relatively cool star; approximately 100 times the mass of Jupiter

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.