dubnium, Db, hahnium, element, atomic number
(noun) a transuranic element
Source: WordNet® 3.1
dubnium (uncountable)
A transuranic chemical element (symbol Db) with atomic number 105.
(chemistry, obsolete) A rejected name for rutherfordium.
• 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
23 November 2024
(adjective) concerned primarily with theories or hypotheses rather than practical considerations; “theoretical science”
Espresso is both a coffee beverage and a brewing method that originated in Italy. When making an espresso, a small amount of nearly boiling water under pressure forces through finely-ground coffee beans. It has more caffeine per unit volume than most coffee beverages. Its smaller serving size will take three shots to equal a mug of standard brewed coffee.
