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1. Dictionary

   fluorescence

   /flʊəˈrɛsns/

   noun

   • 1. the visible or invisible radiation produced from certain substances as a result of incident radiation of a shorter wavelength such as X-rays or ultraviolet light.
   • ▪ the property of absorbing light of short wavelength and emitting light of longer wavelength.

   Word Origin mid 19th century: from fluorspar (which fluoresces), on the pattern of opalescence.

   Scrabble Points: 19

   • F

     4

   • L

     1

   • U

     1

   • O

     1

   • R

     1

   • E

     1

   • S

     1

   • C

     3

   • E

     1

   • N

     1

   • C

     3

   • E

     1

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