plural binaries
1
: something made of two things or parts
specifically
: binary star
2
mathematics
: a number system based only on the numerals 0 and 1 : a binary (see binary entry 2 sense 3a) number system
42 is written as 101010 in binary.
3
: a division into two groups or classes that are considered diametrically opposite
Sam Killermann, a self-described "social justice comedian," is very serious about how far the complexities of identity go beyond the traditional binary of male or female.—
Katy Steinmetz
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Merriam-Webster unabridged



