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luminousness
 
Noun luminousness has 1 sense
  1. luminosity, brightness, brightness level, luminance, luminousness, light - the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"
    --1 is a kind of physical property
    --1 has particulars:
     illuminance, illumination; incandescence; luminescence, glow
luminosity luminous luminous luminous energy luminous flux luminous flux unit luminous intensity unit luminously luminousness luminus lumirated lumma lummock lummox lummoxes lumni lumosity

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