DICT.TW Dictionary Taiwan

 luminousness
 透光率

 Lu·mi·nous a.
 1. Shining; emitting or reflecting light; brilliant; bright; as, the is a luminous body; a luminous color.
    Fire burneth wood, making it . . . luminous.   --Bacon.
    The mountains lift . . . their lofty and luminous heads.   --Longfellow.
 2. Illuminated; full of light; bright; as, many candles made the room luminous.
    Up the staircase moved a luminous space in the darkness.   --Longfellow.
 3. Enlightened; intelligent; also, clear; intelligible; as, a luminous mind. “ Luminous eloquence.” --Macaulay. “ A luminous statement.”
 Luminous paint, a paint made up with some phosphorescent substance, as sulphide of calcium, which after exposure to a strong light is luminous in the dark for a time.
 Syn: -- Lucid; clear; shining; perspicuous.
 -- Lu*mi*nous*ly, adv. -- Lu*mi*nous*ness, n.
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 luminousness
      n : the quality of being luminous; emitting or reflecting light;
          "its luminosity is measured relative to that of our sun"
          [syn: luminosity, brightness, brightness level, luminance,
           light]