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noun, Astronomy.
a graph showing variations in brightness of celestial objects over time.

a graph showing the variation in the light received over a time period from a variable celestial object, as a star
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  • Lighted

    [lahyt] /laɪt/ noun 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics. 3. the sensation produced by stimulation of the organs of sight. 4. an illuminating agent or source, as the sun, a lamp, or a beacon. 5. the radiance or illumination from a particular source: the light […]

  • Light-emitting diode

    [lahyt-i-mit-ing] /ˈlaɪt ɪˌmɪt ɪŋ/ noun 1. . noun 1. a diode of semiconductor material, such as gallium arsenide, that emits light when a forward bias is applied, the colour depending on the semiconductor material: used as off/on indicators LED light-emitting diode See LED. electronics (LED) a type of diode that emits light when current passes […]

  • Light-emitting resistor

    electronics, humour (LER, from “light-emitting diode”) A resistor in the final stages of burning up. (Though intended as purely humorous, the term could sensibly describe the filament of a common incandescent electric light bulb). See also SED. (1996-02-06)

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