n :  a drug C₁₂H₈O₄ used to increase the production of melanin in the skin upon exposure to ultraviolet light and in the treatment of vitiligo - called also 8-methoxypsoralen , xanthotoxin  - see MELOXINE  .
 
 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.