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1. (n.) hafnium
a toxic metallic element found in most zirconium minerals.
Etymology: (1923; < NL Hafn(ia) Copenhagen + -ium2)
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| Definition of 'Hafnium' |
Princeton's WordNet |
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1. (noun) hafnium, Hf, atomic number 72
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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| Definition of 'Hafnium' |
U.S. National Library of Medicine |
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1. Hafnium
Hafnium. A metal element of atomic number 72 and atomic weight 178.49, symbol Hf. (From Dorland, 28th ed)
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Definitions of Hafnium 
