light therapy

noun

: the treatment of medical or psychiatric conditions (such as seasonal affective disorder) by the controlled application of light

called also light treatment, phototherapy

Examples of light therapy in a Sentence

Recent Examples on the Web
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The experience included a facial massage, a hydrating mask, LED light therapy, and lymphatic drainage. Larry Stansbury, Essence, 5 June 2025 Full-spectrum light therapy, powered by a whopping 229 LEDs, promotes smoother, firmer skin and visibly reduces wrinkles after just a few weeks of use. Kate Donnelly, Forbes.com, 15 Apr. 2025 The mask uses red and blue light therapy, infrared, and cryotherapy to smooth the appearance of fine lines and brighten skin. Jennifer Hussein, Allure, 13 Apr. 2025 But that’s until, as the world trembles, Adam falls instantly and inextricably in love with Tina, an English-speaking customer service rep for a light therapy lamp company in Ontario, played by Piper Perabo. Etan Vlessing, HollywoodReporter, 18 May 2025 See All Example Sentences for light therapy

Word History

First Known Use

1987, in the meaning defined above

Time Traveler
The first known use of light therapy was in 1987

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Cite this Entry

“Light therapy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/light%20therapy. Accessed 17 Jun. 2025.

Medical Definition

light therapy

noun
: phototherapy
especially : the use of strong light (as of 10,000 lux intensity) for the treatment of depression and gloom (as in seasonal affective disorder)

called also light treatment

Last Updated: - Updated example sentences
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