transuranic element

/ˈtræntsjəˌrænɪk ˌɛləmənt/

Definitions of transuranic element

1. noun

   any element having an atomic number greater than 92 (which is the atomic number of uranium); all are radioactive
   type of:

   chemical element, element

   any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter