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actinide ['æktɪnaɪd] n
gen. Actinoid n
el. Aktinid m
med. Actinid n
nucl.phys., chem. Actiniden pl.; Actinoide pl.
actinides n
gen. Actinoide; Actinoiden
chem. Aktiniden n; Aktinide (veraltet für Aktionide, Elementengruppe); Aktinoide; Actinide (Actinoide, actinoids)
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. Actinoid n
actinide: 30 phrases in 9 subjects
Chemistry5
Earth sciences6
Environment1
General8
Metallurgy1
Nuclear and fusion power1
Nuclear physics6
Research and development1
Technology1