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Definition of Psoralen
Psoralen: Any of a number of drugs and other substances containing chemicals that react with ultraviolet (UV) light to cause darkening of the skin.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=9866
Last Editorial Review: 7/11/1999 8:44:00 PM
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