transactinide element
[ trans-ak-tuh-nahyd, tranz- ]
/ trænsˈæk təˌnaɪd, trænz- /
noun Chemistry, Physics.
any element having an atomic number higher than 103, the last of the actinide series. These superheavy, radioactive elements are extremely short-lived, and can only be created in the laboratory.
See also
transuranic element.
Words nearby transactinide element
trans.,
transacetylase,
transacetylation,
transact,
transactinide,
transactinide element,
transaction,
transactional analysis,
transactivate,
transacylase,
transaldolation
British Dictionary definitions for transactinide
transactinide
/ (ˌtrænsˈæktɪˌnaɪd) /
noun
any artificially produced element with an atomic number greater than 103
Word Origin for transactinide
C20: from
trans- +
actinide