blue straggler
noun Astronomy.
one of a small group of blue stars within a cluster that falls near the main sequence even though other stars of its color have evolved off the main sequence.
Origin of blue straggler
First recorded in 1965–70
Words nearby blue straggler
blue spruce,
blue stain,
blue state,
blue stellar object,
blue stem,
blue straggler,
blue streak,
blue succory,
blue swimmer,
blue thistle,
blue tit