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consisting of, indicating, or involving two.

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 × 2 5 + 1 × 2 4 + 1 × 2 3 + 0 × 2 2 + 1 × 2 1 + 0 × 2 0 .
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.

Computers. of, relating to, or written in binary code; programmed or encoded using only the digits 0 and 1:
All executable programs on the computer are stored in binary files.
Chemistry. noting a compound containing only two elements or groups, as sodium chloride, methyl bromide, or methyl hydroxide.
Metallurgy. (of an alloy) having two principal constituents.
a whole composed of two.
Mathematics. 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:
to convert decimal to binary.
Also called binary number. Mathematics. a number expressed in the binary system of notation.
Computers. binary code.
Computers. an executable file stored in binary format.
Astronomy, binary star.
Contemporary Examples

Intersexuality and God Through the Ages Candida Moss November 8, 2014
The Hypervelocity Star That’s Being Booted from the Galaxy Matthew R. Francis May 10, 2014
5 Ways to Put Global Poverty Back on (Whichever) President’s Agenda Jamie M. Zimmerman September 21, 2012
Americans are Clear: Obamacare Just Isn’t Liberal Enough Jamelle Bouie December 22, 2013
The American Prophet of Delusion: Robert Stone in Conversation David Samuels November 14, 2013

Historical Examples

An Elementary Study of Chemistry William McPherson
Pleasures of the telescope Garrett Serviss
Essays: Scientific, Political, & Speculative, Vol. I Herbert Spencer
Pleasures of the telescope Garrett Serviss
Astronomy of To-day Cecil G. Dolmage

composed of, relating to, or involving two; dual
(maths, computing) of, relating to, or expressed in binary notation or binary code
(of a compound or molecule) containing atoms of two different elements
(metallurgy) (of an alloy) consisting of two components or phases
(of an educational system) consisting of two parallel forms of education such as the grammar school and the secondary modern in Britain
(maths, logic) (of a relation, expression, or operation) applying to two elements of its domain; having two argument places; dyadic
noun (pl) -ries
something composed of two parts or things
(astronomy) See binary star
short for binary weapon


binary [(beye-nuh-ree, beye-ner-ee)]


Read Also:

  • Binary operation

    a mathematical operation in which two elements are combined to yield a single result: Addition and multiplication are binary operations on the set of real numbers.

  • Binary opposition

    a relation between the members of a pair of linguistic items, as a pair of distinctive features, such that one is the absence of the other, as voicelessness and voice, or that one is at the opposite pole from the other, as stridency and mellowness.

  • Binary pulsar

    a pulsar in a binary system.

  • Binary star

    a system of two stars that revolve about their common center of mass. Historical Examples Astronomical Curiosities J. Ellard Gore The Astronomy of Milton’s ‘Paradise Lost’ Thomas Orchard noun a double star system comprising two stars orbiting around their common centre of mass. A visual binary can be seen through a telescope. A spectroscopic binary […]

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