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Definition of: binary
Our photo definition of binary 
(bī′nə·rē) adjective
1. Pertaining to, characterized by, or made up of two; double; paired.
2. Astron. Denoting a pair of stars revolving about a common center.
—noun plural ·ries
1. A combination of two things; a couple; duality.
2. A binary star. [<L binarius <bini two, double]
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