adjective Pathology.
  1. (of certain tissues or organisms) sensitive to or destructible by various types of radiant energy, as x-rays, rays from radioactive material, or the like.

Origin of radiosensitive

First recorded in 1915–20; radio- + sensitive
Related formsra·di·o·sen·si·tiv·i·ty, ra·di·o·sen·si·bil·i·ty [rey-dee-oh-sen-suh-bil-i-tee] /ˌreɪ di oʊˌsɛn səˈbɪl ɪ ti/, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for radiosensitive


  1. affected by or sensitive to radiation
Derived Formsradiosensitively, adverbradiosensitivity, 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

radiosensitive in Medicine


  1. Sensitive to the action of radiation. Used especially of living structures.
Related formsra′di•o•sen′si•tivi•ty n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.