transactinide
English
Etymology
trans- + actinide
Adjective
transactinide (comparative more transactinide, superlative most transactinide)
- (chemistry, physics) Lying beyond actinium in the periodic table; having an atomic number greater than 103.
Coordinate terms
- transuranic
Noun
transactinide (plural transactinides)
- (chemistry, physics) Any of the artificially produced elements having an atomic number greater than 103.