/trans"yoo ran"ik, tranz"-, trans'-, tranz'-/ , Chem., Physics.
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.
Also, transuranium element /trans'yoo ray"nee euhm, tranz'-/ .
[ 1930-35; TRANS- + URAN(IUM) + -IC ]