Meaning : एक धात्विक तत्त्व।
Example :
हाफ्नियम की परमाणु संख्या बहत्तर है।
Translation in other languages :
A grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals. Used in filaments for its ready emission of electrons.
atomic number 72, hafnium, hf