This is not a dictionary! - Search for "hafnium" in The Danish Dictionary
January 15. 2013 from WordNet.dk
grundstof nr. 72; gråskinnende, hårdt og tungt met ...
February 28. 2016 from wordnet.princeton.edu
a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
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