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12 definitions found
From WordNet (r) 2.0 :   [ wn ]

  speed of light
       n : 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
           [syn: light speed, c]

From English Wiktionary: All languages (2023-07-27) :   [ dictinfo.com:wikt-en-ALL-2023-07-27 ]

  speed of light
     n.
     (lb en physics) The speed of electromagnetic radiation; in a perfect
  vacuum it is defined as 299,792,458 metres per second

From English Wiktionary: English language only (2023-07-27) :   [ dictinfo.com:wikt-en-en-2023-07-27 ]

  speed of light
     n.
     (lb en physics) The speed of electromagnetic radiation; in a perfect
  vacuum it is defined as 299,792,458 metres per second

From English Wiktionary: Western, Greek, and Slavonic languages only (2023-07-27) :   [ dictinfo.com:wikt-en-Western_Greek_Slavonic-2023-07-27 ]

  speed of light
     n.
     (lb en physics) The speed of electromagnetic radiation; in a perfect
  vacuum it is defined as 299,792,458 metres per second

From English Wiktionary: Western languages only (2023-07-27) :   [ dictinfo.com:wikt-en-Western-2023-07-27 ]

  speed of light
     n.
     (lb en physics) The speed of electromagnetic radiation; in a perfect
  vacuum it is defined as 299,792,458 metres per second

From Finnish Wiktionary: All languages (2023-07-27) :   [ dictinfo.com:wikt-fi-ALL-2023-07-27 ]

  speed of light
     Englanti n.
     1 (yhteys fysiikka k=en) valonnopeus (yksikkö; valon nopeus
  täydellisessä tyhjiössä)
     2 valon nopeus (väliaineessa hitaampi kuin täydellisessä tyhjiössä)

From English-Czech dicts.info/FreeDict Dictionary ver. 0.1.3 :   [ freedict:eng-ces ]

  speed of light /spˈiːd ɒv lˈaɪt/
  rychlost světla

From English - German Ding/FreeDict dictionary ver. 1.9-fd1 :   [ freedict:eng-deu ]

  speed of light /spˈiːd ɒv lˈaɪt/
  Lichtgeschwindigkeit  [phys.]
        "at speed of light"  - mit Lichtgeschwindigkeit
     Synonym: light speed
  

From English-suomi FreeDict+WikDict dictionary ver. 2023.05.29 :   [ freedict:eng-fin ]

  speed of light /spˈiːd ɒv lˈaɪt/ 
  valonnopeus, valon nopeus
  the speed of electromagnetic radiation in a perfect vacuum

From English-Croatian FreeDict Dictionary ver. 0.2.2 :   [ freedict:eng-hrv ]

  speed of light /spˈiːd ɒv lˈaɪt/
  brzina svjetlosti

From English-日本語 (にほんご) FreeDict+WikDict dictionary ver. 2023.05.29 :   [ freedict:eng-jpn ]

  speed of light /spˈiːd ɒv lˈaɪt/ 
  光速
  the speed of electromagnetic radiation in a perfect vacuum

From English-Svenska FreeDict+WikDict dictionary ver. 2023.05.29 :   [ freedict:eng-swe ]

  speed of light /spˈiːd ɒv lˈaɪt/ 
  ljusets hastighet
  the speed of electromagnetic radiation in a perfect vacuum

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