symmetric.
Synonym of symmetrical
Meaning & usage
Synonym of symmetrical
Of a relation R on a set S, such that xRy if and only if yRx for all members x and y of S (that is, if the relation holds between any element and a second, it also holds between the second and the first).
"Is a sibling of" is a symmetric relation.
Using the same key (or keys that are trivially related) for both encryption and decryption.
Where this word comes from
From symmetry + -ic, from Latin symmetria, from Ancient Greek συμμετρία (summetría).
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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.