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Definitions of luminous:
  • adjective:   softly bright or radiant
    Example: "A sky luminous with stars"



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Alternative Terms
efficacy quotient luminous-flux radiation lumen radiant-power wavelength illumination luminous-coefficient photometry-2 light electromagnetic-radiation eyesight radiant-flux luminosity-function international-commission-on-illumination optical-spectrum eye photopia scotopic-vision si watt-surname units-of-measurement dimensionless-quantity integral spectral-power-distribution nanometre antares betelgeuse black-body sun capella-star heat candle incandescent-light-bulb fluorescent-lamp arc-lamp xenon-arc-lamp mercury xenon gas-discharge-lamp sodium-vapor-lamp sulfur-lamp tungsten infrared luminous-energy second talbot-photometry candela steradian luminous-intensity base-unit luminance square-metre illuminance luxembourg-findel-international-airport photometry-optics hyperphysics excitation-spectrum lumberg talbot color-rendering-capacity stiles-crawford-effect lux cie931-color-space electrical-efficiency