Finsen light
noun
Fin·sen light
ˈfin(t)sən-,
-nzən-
: a mixture of blue, violet, and near ultraviolet light that is produced by a lamp using a high-temperature carbon arc or a mercury arc and that is used in the treatment of lupus and certain other skin conditions and in testing paints and other protective coatings
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“Finsen light.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Finsen%20light. Accessed 23 Nov. 2024.
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