onium.
Any cation derived by the addition of a proton to the hydride of any element of the nitrogen, chalcogen or halogen families.
Meaning & usage
Any cation derived by the addition of a proton to the hydride of any element of the nitrogen, chalcogen or halogen families.
Any organic derivative of these compounds.
Where this word comes from
Etymology tree New Latin ammōniumbor. English ammonium English onium From ammonium.
The bound pair of a particle and its antiparticle.
Where this word comes from
See Wikipedia at muonium § Nomenclature.
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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.