phototherapy

[foh-tuh-ther-uh-pee]
noun
1.
treatment of disease, especially of the skin, by means of light rays.

Origin:
1895–1900; photo- + therapy

phototherapic [foh-toh-thuh-rap-ik] , adjective
phototherapist, noun
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World English Dictionary
phototherapy or phototherapeutics (ˌfəʊtəʊˈθɛrəpɪ, ˌfəʊtəʊˌθɛrəˈpjuːtɪks)
 
n
(functioning as singular) the use of light in the treatment of disease
 
phototherapeutics or phototherapeutics
 
n
 
photothera'peutic or phototherapeutics
 
adj
 
photothera'peutically or phototherapeutics
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

phototherapy pho·to·ther·a·py (fō'tō-thěr'ə-pē)
n.
The treatment of a disorder, especially of the skin, by exposure to light, including ultraviolet and infrared radiation. Also called light treatment.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Phototherapy may be given alone or after you take a drug that makes the skin sensitive to light.
Phototherapy is a medical procedure in which your skin is carefully exposed to ultraviolet light.
Safety of phototherapy ultraviolet light causes progressive damage to human skin.
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