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actinide ['æktɪnaɪd] n
gen. actinoïde
environ., engl. actinide n
actinides n
chem. actiniden
actinide A group of 15 radioactive elements some of which occur naturally while others are produced in nuclear reactions. They include plutonium, americium and neptunium. The health hazard presented by the actinides, if they are released into the environment, comes from the potency of their radioactive characteristics. They are alpha-emitters, and therefore can cause intense localized damage in tissues if absorbed into the body n
environ. actinide n
actinide: 23 phrases in 9 subjects
Chemistry2
Earth sciences7
Environment1
General7
Metallurgy2
Natural sciences1
Nuclear and fusion power1
Nuclear physics1
Physical sciences1