音标:[træns'æktinaid,trænz-,trɑ:ns-,trɑ:nz-] ;
a. 超锕系元素的,锕系后元素的
n any of the artificially produced elements with atomic numbers greater than 103
a of or belonging to the elements with atomic numbers greater than 103
词型变化:名词复数形式 : transactinides