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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 am·er·i·ci·um /ˌæməˈrɪʃiəm, si-/

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 am·er·i·ci·um /ˌæməˈrɪs(h)ɪəm/ 名詞

From: WordNet (r) 2.0

      n : a radioactive transuranic metallic element; discovered by
          bombarding uranium with helium atoms [syn: Am, atomic
          number 95]

From: Elements database 20001107

 Symbol: Am
 Atomic number: 95
 Atomic weight: (243)
 Radioactive metallic transuranic element, belongs to the actinoids. Ten
 known isotopes. Am-243 is the most stable isotope, with a half-life of
 7.95*10^3 years. Discovered by Glenn T. Seaborg and associates in 1945, it
 was obtained by bombarding uranium-238 with alpha particles.