Nihonium
//nɪˈhoʊ.ni.əm// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 The synthetic transactinide chemical element with atomic number 113. uncountable
"Japanese scientists behind the discovery of element 113, the first atomic element found in Asia - indeed, the first found outside Europe or the United States - have dubbed it "nihonium" after the Japanese-language name for their country."
Example
More examples"Nihonium is the chemical element with atomic number 113."
Etymology
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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More for "nihonium"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.