binary

The definition of binary is double or made up of two parts, or a number system where every number is expressed by 0 or 1 or a combination of them.

(adjective)

See binary in Webster's New World College Dictionary

adjective

made up of two parts or things; twofold; double
designating or of a number system in which the base used is two, each number being expressed in powers of two by using only two digits, specif. 0 and 1
designating or of a musical form consisting of two closely related sections
Chem. composed of two elements or radicals, or of one element and one radical: binary compounds

Origin: ME binarie < L binarius < bini, two by two < bis, double < IE *duis < base *dwōu-, two

noun pl. binaries

See binary in American Heritage Dictionary 4

adjective

Characterized by or consisting of two parts or components; twofold.
Of or relating to a system of numeration having 2 as its base.
Chemistry Consisting of or containing only molecules consisting of two kinds of atoms.
Of or employing two comparatively nontoxic chemicals that combine to produce a deadly poison: binary weapons; a binary nerve gas.
Music Having two sections or subjects.

noun pl. bi·na·ries

Something that is binary, especially a binary star.

Origin:

Origin: Middle English binarie

Origin: , from Late Latin bīnārius

Origin: , from Latin bīnī, two by two; see dwo- in Indo-European roots

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