phototherapy

[ foh-tuh-ther-uh-pee ]

/ ˌfoʊ təˈθɛr ə pi /

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noun

treatment of disease, especially of the skin, by means of light rays.

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Origin of phototherapy

First recorded in 1895–1900; photo- + therapy

OTHER WORDS FROM phototherapy

pho·to·the·rap·ic

[foh-toh-thuh-rap-ik], /ˌfoʊ toʊ θəˈræp ɪk/, adjectivepho·to·ther·a·pist, noun

Words nearby phototherapy

photosystem, phototaxis, phototelegraphy, phototheodolite, phototherapeutics, phototherapy, photothermic, phototonus, phototopography, phototoxic, phototoxin

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use phototherapy in a sentence

Hence there has arisen in medicine a vast and most interesting chapter of phototherapy.
Pedagogical Anthropology|Maria Montessori

British Dictionary definitions for phototherapy

phototherapy

phototherapeutics (ˌfəʊtəʊˌθɛrəˈpjuːtɪks)

/ (ˌfəʊtəʊˈθɛrəpɪ) /

noun

(functioning as singular) the use of light in the treatment of disease

Derived forms of phototherapy

phototherapeutic, adjectivephototherapeutically, adverb

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