phototherapy

noun

pho·​to·​ther·​a·​py ˌfō-tō-ˈther-ə-pē How to pronounce phototherapy (audio)

Examples of phototherapy in a Sentence

Recent Examples on the Web
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In October 2024, in a study published in JAMA Dermatology, researchers from the Perelman School of Medicine at the University of Pennsylvania found that patients can improve their psoriasis just as well at home with phototherapy devices that are designed to be easy to self administer. Marisa Meltzer, New York Times, 31 Dec. 2024 Some types of phototherapy, a medical treatment using lightwaves, may be used to treat psoriasis, but this approach is regulated and only used under medical supervision. Megan Decker, refinery29.com, 19 Jan. 2024 Getting an X-ray on your hands and feet or undergoing phototherapy or light therapy can increase your risk of developing black lines on your nails. Lindsay Curtis, Health, 10 Oct. 2024 What is the difference between UVA and UVB/phototherapy light treatments? Humeara Mohamed, refinery29.com, 15 July 2024 See all Example Sentences for phototherapy 

Word History

First Known Use

1899, in the meaning defined above

Time Traveler
The first known use of phototherapy was in 1899

Dictionary Entries Near phototherapy

Cite this Entry

“Phototherapy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phototherapy. Accessed 1 Feb. 2025.

Medical Definition

phototherapy

noun
pho·​to·​ther·​a·​py -ˈther-ə-pē How to pronounce phototherapy (audio)
plural phototherapies
: the application of light for therapeutic purposes

More from Merriam-Webster on phototherapy

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