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actinide
[ ak-tuh-nahyd ]
actinide
/ ˈæktɪˌnaɪd /
noun
- a member of the actinide series Also calledactinon
actinide
/ ăk′tə-nīd′ /
- Any of a series of chemically similar metallic elements with atomic numbers ranging from 89 (actinium) to 103 (lawrencium). All of these elements are radioactive, and two of the elements, uranium and plutonium, are used to generate nuclear energy.
- See Periodic Table
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Word History and Origins
Origin of actinide1
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Word History and Origins
Origin of actinide1
C19: from actino- + -ide
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