HAFNIUM

hafnium, Hf, atomic number

(noun) a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons

Source: WordNet® 3.1


Etymology

Noun

hafnium (uncountable)

A chemical element (symbol Hf) with an atomic number of 72: a lustrous, silvery-grey tetravalent transition metal.

Synonyms

• celtium (former name)

Source: Wiktionary



RESET




Word of the Day

24 April 2025

LININ

(noun) an obsolete term for the network of viscous material in the cell nucleus on which the chromatin granules were thought to be suspended


coffee icon

Coffee Trivia

According to WorldAtlas, Finland is the biggest coffee consumer in the entire world. The average Finn will consume 12 kg of coffee each year.

coffee icon