Binary (Assemblage 23 song)
WordNet

adjective


(1)   Consisting of two (units or components or elements or terms) or based on two
"A binary star is a system in which two stars revolve around each other"
"A binary compound"
"The binary number system has two as its base"
(2)   Of or pertaining to a number system have 2 as its base
"A binary digit"

noun


(3)   A system of two stars that revolve around each other under their mutual gravitation
 
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