| hafnium | (n) a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons, Syn. atomic number 72, Hf |
| 铪 | [铪 / 鉿] hafnium Hf, transition metal, atomic number 72 #104,463 [Add to Longdo] |