| Noun | 1. | binary - a system of two stars that revolve around each other under their mutual gravitation Synonyms: binary star, double star |
| Adj. | 1. | binary - of or pertaining to a number system have 2 as its base; "a binary digit" |
| 2. | 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" |
| 1. | (mathematics) | binary - Base two. A number representation consisting of zeros and ones used by practically all computers because of its ease of implementation using digital electronics and Boolean algebra. | |
| 2. | (file format) | binary - Any file format for digital data encoded
as a sequence of bits but not consisting of a sequence of
printable characters (text). The term is often used for
executable machine code. Of course all digital data, including characters, is actually binary data (unless it uses some (rare) system with more than two discrete levels) but the distinction between binary and text is well established. | |
| 3. | (programming) | binary - A description of an operator which takes two arguments. See also unary, ternary. |