DICT.TW Dictionary Taiwan
3.149.24.145
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

1 definition found

From: WordNet (r) 2.0

 atomic number 72
      n : a gray tetravalent metallic element that resembles zirconium
          chemically and is found in zirconium minerals; used in
          filaments for its ready emission of electrons [syn: hafnium,
           Hf]