atomic_number_72 (HyperDic hyper-dictionary)

English > 1 sense of the expression *atomic number 72*:
NOUN	substance	atomic number 72, hafnium, Hf	a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals

English > *atomic number 72*: 1 sense > noun 1, substance
Meaning	A grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons.
Synonyms	hafnium, Hf
Broader	metallic element, metal	Any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Spanish	hafnio, número atómico 72
Catalan	hafni, Hf, número atòmic 72

HyperDic: atomic_number_72