Synonyms for binaries
EXAMPLES FROM THE WEB FOR BINARIES
A very large proportion of stars are binaries—two suns revolve round their common centre of gravity.
Great numbers of binaries of this type have since then been discovered, all of short period.
"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.