fluorescence Hear it!

fluorescence definition

fluo·res·cence (-əns)

noun

  1. the property of a substance, such as fluorite, of producing light while it is being acted upon by ultraviolet rays, X-rays, or other forms of radiant energy
  2. the production of such light
  3. light so produced

Etymology: < fluor(spar) + -escence

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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