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actinium [æk'tɪnɪəm] s
quím. actiniu
actinium A radioactive element of the actinide series, occurring as a decay product of uranium. It is used as an alpha particle source and in neutron production s
ambient. actiniu
 Inglés tesauro
Actinium [æk'tɪnɪəm] abbr.
abrev., escoc. Ac