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actinium [æk'tɪnɪəm] n
met.	actinium m
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 n
environ.	actinium m
English thesaurus
Actinium [æk'tɪnɪəm] abbr.
abbr., scottish	Ac

Actinium: 103 phrases in 3 subjects

Chemistry	4
Nuclear physics	8
Радиоактивное излучение	91