luminousness

Definitions of luminousness
  1. noun
    the quality of being luminous; emitting or reflecting light
    synonyms: brightness, brightness level, light, luminance, luminosity
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    types:
    illuminance, illumination
    the luminous flux incident on a unit area
    incandescence
    light from heat
    glow, luminescence
    light from nonthermal sources
    type of:
    physical property
    any property used to characterize matter and energy and their interactions
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