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radioactivate

[rey-dee-oh-ak-tuh-veyt]
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verb (used with object), ra·di·o·ac·ti·vat·ed, ra·di·o·ac·ti·vat·ing. Physics.
  1. to make (a substance) radioactive.
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Origin of radioactivate

First recorded in 1900–05; radioactive + -ate1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for radioactivate

radioactivate

verb
  1. (tr) to make radioactive
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Derived Formsradioactivation, noun
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