unary.
Consisting of or involving a single element or component.
Meaning & usage
Consisting of or involving a single element or component.
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.
Where this word comes from
From Latin ūnus (“one”) + -ary, on the pattern of binary, ternary, etc.
The unary, or bijective base-1, numeral system.
Unary coding, an entropy encoding for natural numbers.
Where this word comes from
From Latin ūnus (“one”) + -ary, on the pattern of binary, ternary, etc.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.