dubnium.
A transuranic chemical element (symbol Db) with atomic number 105.
Meaning & usage
A transuranic chemical element (symbol Db) with atomic number 105.
A transuranic chemical element (symbol Db) with atomic number 105. An atom of this element.
A rejected name for rutherfordium.
Where this word comes from
From Dubna + -ium, named after Dubna, Moscow Oblast, Russia, the site of the Joint Institute for Nuclear Research, which discovered the element.
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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.