treatment of disease by means of x-rays or of radioactive substances.
Origin of radiotherapy
Also called radiation therapy.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for radiotherapy
Contemporary Examples of radiotherapy
After surgery, the patients all received the standard therapy of chemo, radiotherapy and endocrine therapy.How Big Pharma Holds Back in the War on Cancer
April 23, 2014
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
Online Etymology Dictionary, © 2010 Douglas Harper
Treatment of disease with radiation, especially by selective irradiation with x-rays or other ionizing radiation and by ingestion of radioisotopes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.