- of or relating to a system of numerical notation to the base 2, in which each place of a number, expressed as 0 or 1, corresponds to a power of 2. The decimal number 58 appears as 111010 in binary notation, since 58 = 1 × 25 + 1 × 24 + 1 × 23 + 0 × 22 + 1 × 21 + 0 × 20.
- of or relating to the digits or numbers used in binary notation.
- of or relating to a binary system.
- (of an operation) assigning a third quantity to two given quantities, as in the addition of two numbers.
noun, plural bi·na·ries.
Words nearby binary
Origin of binary
WORDS THAT MAY BE CONFUSED WITH binarybinary bindery
British Dictionary definitions for binary number (1 of 2)
British Dictionary definitions for binary number (2 of 2)
noun plural -ries
Word Origin for binary
Medicine definitions for binary number
Science definitions for binary number
Culture definitions for binary number
Anything composed of two parts. In modern computers, information is stored in banks of components that act like switches. Since switches can be either on or off, they have a binary character, and we say that the computer uses “binary arithmetic” to do its work.