[ちょうじゅうげんそ, choujuugenso] (n) transuranium element; transuranic element; super heavy element [Add to Longdo]
Result from Foreign Dictionaries (1 entries found)
From WordNet (r) 3.0 (2006) [wn]:
transuranic element
n 1: any element having an atomic number greater than 92 (which
is the atomic number of uranium); all are radioactive