- 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. 2018
Examples from the Web for 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
- the treatment of disease, esp cancer, by means of alpha or beta particles emitted from an implanted or ingested radioisotope, or by means of a beam of high-energy radiationCompare chemotherapy
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
Word Origin and History for radiotherapy
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.