radioelement

[rey-dee-oh-el-uh-muh nt]

noun Chemistry.

a radioactive element.

Origin of radioelement

First recorded in 1900–05; radio- + element

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for radioelement

radioelement

noun

an element that is naturally radioactive

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012