Binary star

Binary star
Binary Bi"na*ry, a. [L. binarius, fr. bini two by two, two at a time, fr. root of bis twice; akin to E. two: cf. F. binaire.] Compounded or consisting of two things or parts; characterized by two (things). [1913 Webster]

{Binary arithmetic}, that in which numbers are expressed according to the binary scale, or in which two figures only, 0 and 1, are used, in lieu of ten; the cipher multiplying everything by two, as in common arithmetic by ten. Thus, 1 is one; 10 is two; 11 is three; 100 is four, etc. --Davies & Peck.

{Binary compound} (Chem.), a compound of two elements, or of an element and a compound performing the function of an element, or of two compounds performing the function of elements.

{Binary logarithms}, a system of logarithms devised by Euler for facilitating musical calculations, in which 1 is the logarithm of 2, instead of 10, as in the common logarithms, and the modulus 1.442695 instead of .43429448.

{Binary measure} (Mus.), measure divisible by two or four; common time.

{Binary nomenclature} (Nat. Hist.), nomenclature in which the names designate both genus and species.

{Binary scale} (Arith.), a uniform scale of notation whose ratio is two.

{Binary star} (Astron.), a double star whose members have a revolution round their common center of gravity.

{Binary theory} (Chem.), the theory that all chemical compounds consist of two constituents of opposite and unlike qualities. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • binary star — n. two stars revolving around a common center of gravity; double star …   English World dictionary

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  • binary star — Astron. a system of two stars that revolve about their common center of mass. Also called binary, binary system. [1875 80] * * * Pair of stars in orbit around a common centre of gravity. Their relative sizes and brightnesses and the distance… …   Universalium

  • binary star — noun A stellar system that has two stars orbiting around each other; double star. Syn: double star, binary, binary star system, double star system See Also: trinary star …   Wiktionary

  • binary star — /ˈbaɪnəri sta/ (say buynuhree stah) noun a system of two stars which revolve round their common centre of gravity. See astronomic binary star, eclipsing binary star, spectroscopic binary star …  

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  • Binary Star (band) — Infobox musical artist Name = Binary Star Background = group or band Origin = Pontiac, Michigan, United States Genre = Alternative Hip Hop Years active = 1998 2000 Label = Subterraneous Associated acts = URL = Past members = One Be Lo Senim… …   Wikipedia

  • binary star system — noun a binary star Syn: double star system, binary star See Also: stellar system, star system, multiple star system, single star system, trinary star system, triple …   Wiktionary

  • binary star — noun a system of two stars that revolve around each other under their mutual gravitation • Syn: ↑binary, ↑double star • Hypernyms: ↑star • Instance Hyponyms: ↑Aldebaran, ↑Algol, ↑ …   Useful english dictionary

  • binary star — bi′nary star′ n. ars astron. a system of two stars that revolve about their common center of mass • Etymology: 1875–80 …   From formal English to slang

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