nihonium.
The synthetic transactinide chemical element with atomic number 113.
Meaning & usage
The synthetic transactinide chemical element with atomic number 113.
The synthetic transactinide chemical element with atomic number 113. An atom of this element.
Where this word comes from
From Japanese 日本 (Nihon, “Japan”) + -ium. Promulgated in June 2016 by the IUPAC based on recommendations of the RIKEN Nishina Center for Accelerator-Based Science to honor the country where the element was discovered. Doublet of nipponium.
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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.