velocity of light

Definition of velocity of light

: a fundamental constant that represents the speed of electromagnetic radiation in a vacuum and equals approximately 2.9979 × 1010 centimeters per second

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Cite this Entry

“Velocity of light.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/velocity%20of%20light. Accessed 20 Oct. 2020.

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