light speed


Definition: Meaning of, light speed in English to English dictionary.

Pronunciation: / lʌɪt spiːd /

  • noun
  • synonym
  • antonym
Word Forms:
Singular Plural
light speed light speeds
  1. 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
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