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superactinide

superactinide noun: 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.

Noun

superactinide (plural superactinides)

  1. 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.

Forms of superactinide

pluralsuperactinides

Origin of superactinide

From super- + actinide.

Questions about superactinide

What does superactinide mean?
Superactinide means 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.
What part of speech is superactinide?
Superactinide is a noun.
What is the plural of superactinide?
The plural of superactinide is superactinides.

Words near superactinide in the dictionary

  1. superacidic
  2. superacidity
  3. superacids
  4. superacidulated
  5. superacoustic
  6. superactinide
  7. superactinides
  8. superaction
  9. superactions
  10. superactivate
  11. superactivating

Source and license

Adapted from Wiktionary: superactinide (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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