Meaning of transuranic element

trans'u•ran'ic el'e•ment

Pronunciation: (trans'yoo-ran'ik, tranz'-, trans"-, tranz"-), [key]
— Chem., Physics. Chem.,Physics.
  1. any element having an atomic number greater than 92, the atomic number of uranium. All such elements are radioactive and can be synthesized by bombarding a heavy element with a light particle or element.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.