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Adjective: transactinide  ,tranz'ak-tu,nId
  1. Of or belonging to the elements with atomic numbers greater than 103
    "Transactinide elements are synthesized in laboratories and are highly unstable"
Noun: transactinide  ,tranz'ak-tu,nId
  1. Any of the artificially produced elements with atomic numbers greater than 103
    "Researchers continue to synthesize new transactinide elements in particle accelerators"

Derived forms: transactinides

Type of: chemical element, element

Encyclopedia: Transactinide