Noun binary star has 1 sense

• binary star(n = noun.object) binary, double star - a system of two stars that revolve around each other under their mutual gravitation; Array
has particulars: aldebaran, algol, alpha centauri, rigil, rigil kent, altair, antares, epsilon aurigae, procyon, beta orionis, rigel, canicula, dog star, sirius, sothis, vega
is a kind of star