EnglishEdit
EtymologyEdit
Late Latin unarius (“consisting of a single thing”), from unus (“one”).
AdjectiveEdit
unary (not comparable)
 Consisting of or involving a single element or component.
 (mathematics, programming, computer engineering) Of an operation, function, procedure, or logic gate, taking exactly one operand, argument, parameter, or input; having domain of dimension 1.
 Negation is a unary operation.
TranslationsEdit
consisting of or involving a single element or component

mathematics, programming: of a funciton, to take one argument
NounEdit
unary (plural unaries)
 (mathematics) The unary numeral system; the bijective base1 numeral system.
 (information theory) Unary coding, an entropy encoding for natural numbers.