verb (used without object), luminesced, luminescing.
to exhibit luminescence.

1895–1900; back formation from luminescent Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
luminesce (ˌluːmɪˈnɛs)
(intr) to exhibit luminescence
[back formation from luminescent]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Example sentences
Promethium salts luminesce in the dark with a pale blue or greenish glow, due
  to their high radioactivity.
Ultraviolet light causes the mushroomlike fruiting bodies of myxomycetes, or
  slime molds, to luminesce with a ghostly aura.
There are numerous combinations of lights and filters that work to make inks
As the gas decays into helium, it produces low-energy beta particles, which
  strike the phosphor and cause it to luminesce.
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