HyperDic: atomic_number_72

English > 1 sense of the expression atomic number 72:
NOUNsubstanceatomic number 72, hafnium, Hfa grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals
English > atomic number 72: 1 sense > noun 1, substance
MeaningA grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons.
Synonymshafnium, Hf
Broadermetallic element, metalAny of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Spanishhafnio, número atómico 72
Catalanhafni, Hf, número atòmic 72

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