red dwarfred dwarf
nounpl. red dwarfs or occas.red dwarves
a star that is cooler on its surface, smaller, and of fainter luminosity than the sun
A dwarf star, ranging in mass from one-tenth to one-half the mass of the sun, whose relatively cool surface temperature makes it appear red-orange in color.
(plural red dwarfs)
- (astronomy) A small, relatively cool star of the main sequence; most stars in the Milky Way are red dwarfs.