transuranium element

transuranic element

[trans-yoo-ran-ik, tranz-, trans-, tranz-]
noun Chemistry, 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. See also transactinide element.
Also, transuranium element [trans-yoo-rey-nee-uhm, tranz-] .

1930–35; trans- + uran(ium) + -ic Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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transuranic element

any element having an atomic number greater than 92 (which is the atomic number of uranium); all are radioactive 
WordNet® 3.0, © 2006 by Princeton University.
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