DUBNIUM

dubnium, Db, hahnium, element, atomic number

(noun) a transuranic element

Source: WordNet® 3.1


Etymology

Noun

dubnium (uncountable)

A transuranic chemical element (symbol Db) with atomic number 105.

(chemistry, obsolete) A rejected name for rutherfordium.

Synonyms

• eka-tantalum (used before the element was discovered)

• hahnium (proposed by American scientists, but rejected; still used by some Western scientists; see also hassium)

• joliotium (proposed by the IUPAC, but rejected)

• nielsbohrium (proposed by Russian scientists, but rejected)

• unnilpentium (used before the element had been officially named to avoid disputes between Western and Russian scientists over "hahnium" and "dubnium" respectively)

Source: Wiktionary



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Word of the Day

24 February 2025

ANOMALY

(noun) (astronomy) position of a planet as defined by its angular distance from its perihelion (as observed from the sun)


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In the 16th century, Turkish women could divorce their husbands if the man failed to keep his family’s pot filled with coffee.

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