Definitions of binary

  1. That which is constituted of two figures, things, or parts; two; duality.
  2. A couple; duality.
  3. 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"
  4. Compounded or consisting of two things or parts; characterized by two ( things).
  5. Composed of two: twofold.
  6. Composed of two; assorted in pairs.
  7. Pertaining to or made up of two; double.
  8. Composed of two.
  9. Consisting of two, or two parts: dual; in astron., applied to double stars; in chem., applied to compounds consisting of two elements.