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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
Sunrise alarm clocks don’t really work as light therapy, according to experts.
—Jamie Ballard, Allure, 16 Jan. 2025
While the device, designed for light therapy, promises to improve skin and stimulate collagen production, her dog, Peanut, seems less than impressed.
—Dan Perry, Newsweek, 5 Jan. 2025
And multifamily spas have gone well beyond the tiny spas of old to incorporate the latest spa technology, from touchless treatment options to zero-gravity flotation pods, wearable wellness devices and infrared and LED light therapies.
—Jeffrey Steele, Forbes, 23 Dec. 2024
Pregnancy-safe skincare treatments Gentle peels, such as lactic acid peels, rejuvenating facials, and LED light therapy, are typically considered safe to do while pregnant.
—Shani Hillian, Essence, 20 Dec. 2024
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Word History
First Known Use
1987, in the meaning defined above
Dictionary Entries Near light therapy
Cite this Entry
“Light therapy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/light%20therapy. Accessed 24 Jan. 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
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