Adjective: transactinide ,tranz'ak-tu,nId
- Of or belonging to the elements with atomic numbers greater than 103
"Transactinide elements are synthesized in laboratories and are highly unstable"
- 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