# binary

[bahy-nuh-ree, -ner-ee]

- consisting of, indicating, or involving two.
- Mathematics.
- 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.

- 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.

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- 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.

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## Origin of binary^{}

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Examples from the Web for binaries

### Historical Examples

#### A very large proportion of stars are binaries—two suns revolve round their common centre of gravity.

Are the Planets Inhabited?E. Walter Maunder

#### Great numbers of binaries of this type have since then been discovered, all of short period.

History of AstronomyGeorge Forbes

## binary

- 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

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- something composed of two parts or things
- astronomy See binary star
- short for binary weapon

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## Word Origin

C16: from Late Latin bīnārius; see bin-

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Word Origin and History for binaries

## binary

### adj.

"dual," mid-15c., from Late Latin binarius "consisting of two," from bini "twofold, two apiece, two-by-two" (used especially of matched things), from bis "double" (see bis-). Binary code in computer terminology was in use by 1952, though the idea itself is ancient. Binary star in astronomy is from 1802.

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Online Etymology Dictionary, © 2010 Douglas Harper

## binary

(bī′nə-rē)- Characterized by or consisting of two parts or components; twofold.
- Consisting of or containing only molecules having two kinds of atoms.

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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

## binary

[bī′nə-rē]

- Having two parts.
- Mathematics Based on the number 2 or the binary number system.

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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## binary

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

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.

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The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.