What is the meaning of light speed?

noun

  • The speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299, 792, 458 meters per second.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). light speed. Retrieved September 20, 2026, from http://smartdefine.org/light_speed/definitions/1291479
ChicagoWordNet. 2010. "light speed" http://smartdefine.org/light_speed/definitions/1291479 (accessed September 20, 2026).
HarvardWordNet 2010, light speed, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/light_speed/definitions/1291479>.
MLAWordNet. "light speed" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/light_speed/definitions/1291479>