hafnium means A chemical element (symbol Hf) with an atomic number of 72: a lustrous, silvery-grey tetravalent transition metal. Lexicurio rates it Rare gem — a strength score of 83 out of 100.
hafnium is pronounced /ˈhæfniəm/.
noun
- A chemical element (symbol Hf) with an atomic number of 72: a lustrous, silvery-grey tetravalent transition metal.