noun, feminine/vi.tɛs də la ly.mjɛʁ/plural: vitesses de la lumière
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
/vi.tɛs də la ly.mjɛʁ/
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