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radiotoxic

American  
[rey-dee-oh-tok-sik] / ˌreɪ di oʊˈtɒk sɪk /

adjective

Pathology.
  1. causing radiation sickness.


radiotoxic British  
/ ˌreɪdɪəʊˈtɒksɪk /

adjective

  1. of or denoting the toxic effects of radiation or radioactive substances

"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

radiotoxic Scientific  
/ rā′dē-ō-tŏksĭk /
  1. Relating to or being a radioactive substance that is toxic to living cells or tissues.


Etymology

Origin of radiotoxic

First recorded in 1945–50; radio- + toxic