1 : consisting of two (units or components or elements or terms); "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"
2 : consisting of or involving two parts or components usually in pairs; "an egg with a double yolk"; "a double (binary) star"; "double doors"; "dual controls for pilot and copilot"; "duple (or double) time consists of two (or a multiple of two) beats to a measure"
adjectif
1 : of or pertaining to a number system have 2 as its base
