1. any of the artificially produced elements with atomic numbers greater than 103;
ADJECTIVE (1)
1. of or belonging to the elements with atomic numbers greater than 103;
WordNet (r) 3.0 (2006):
transactinide
adj 1: of or belonging to the elements with atomic numbers
greater than 103
n 1: any of the artificially produced elements with atomic
numbers greater than 103