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Noun luminescence has 2 senses
  1. luminescence - light not due to incandescence; occurs at low temperatures
    --1 is a kind of     light, visible light, visible radiation
    --1 has particulars: bioluminescence; chemiluminescence
    Derived form: verb luminesce1
  2. luminescence, glow - light from nonthermal sources
    --2 is a kind of luminosity, brightness, brightness level, luminance, luminousness, light
    Derived form: verb luminesce1
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