from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The treatment of a disorder, especially of the skin, by exposure to light, including ultraviolet and infrared radiation.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The use of light to treat disorders of the skin, and certain mood disorders.

from the GNU version of the Collaborative International Dictionary of English

  • n. The application of light for therapeutic purposes, esp. for treating diseases of the skin.

from The Century Dictionary and Cyclopedia

  • n. Treatment of disease by rays derived from the sun or an electric lamp; Finsen treatment; light treatment. It is really a form of radiotherapy, for the rays employed are the non-luminous ultra-violet rays and not those of light.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the use of strong light to treat acne or hyperbilirubinemia of the newborn


Sorry, no etymologies found.



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