transactinide

adjective trans·ac·ti·nide \ tran(t)-ˈsak-tə-ˌnīd , tran-ˈzak- \

Definition of transactinide

: of, relating to, or being actual or hypothetical elements with atomic weights higher than those of the actinide series
  • transactinide chemistry

First Known Use of transactinide

1969

in the meaning defined above

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