vitesse de la lumière

French

Pronunciation

  • IPA(key): /vi.tɛs də la ly.mjɛʁ/
  • Audio:(file)

Noun

vitesse de la lumière f (usually uncountable, plural vitesses de la lumière)

  1. speed of light (the speed of electromagnetic radiation in a vacuum or in a substance)
    à la vitesse de la lumière ― at the speed of light
    la vitesse de la lumière dans le vide ― the speed of light in a vacuum.

See also

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