- binary - of or pertaining to a number system have 2 as its base; "a binary digit"
- binary - consisting of two (units or components or elements or terms) or based on two; "a binary star is a system in which two stars revolve around each other"; "a binary compound"; "the binary number system has two as its base"
Antonym: single (indirect, via multiple)
- binary - consisting of two (units or components or elements or terms) or based on two; "a binary star is a system in which two stars revolve around each other"; "a binary compound"; "the binary number system has two as its base"
- binary star, binary, double star - a system of two stars that revolve around each other under their mutual gravitation
--1 is a kind of star
--1 has particulars:Aldebaran; Algol; Alpha Centauri, Rigil Kent, Rigil; Altair; Antares; Epsilon Aurigae; Procyon; Rigel, Beta Orionis; Sirius, Dog Star, Canicula, Sothis; Vega