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)]


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