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Actinide
/ˈæktɪnaɪd/
Any of the 14 radioactive elements of the periodic table that are positioned under the lanthanides, to which they have similar chemistry.
📖 Definitions of "Actinide"
noun
- 1
Any of the 14 radioactive elements of the periodic table that are positioned under the lanthanides, to which they have similar chemistry.
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