treatment of disease, especially of the skin, by means of light rays.
Origin of phototherapy
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Examples from the Web for phototherapy
Historical Examples of phototherapy
Hence there has arisen in medicine a vast and most interesting chapter of phototherapy.Pedagogical Anthropology
(functioning as singular) the use of light in the treatment of disease
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
The treatment of a disorder, especially of the skin, by exposure to light, including ultraviolet and infrared radiation.light treatment
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.