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superactinide. In DICTIOUS you will not only get to know all the dictionary meanings for the word
superactinide, but we will also tell you about its etymology, its characteristics and you will know how to say
superactinide in singular and plural. Everything you need to know about the word
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English
Etymology
From super- + actinide.
Pronunciation
Noun
superactinide (plural superactinides)
- (chemistry) Any of the undiscovered chemical elements from unbiunium (121) to perhaps unpentseptium (157), following the transactinides. These will presumably go below the actinides in the periodic table.