speed of light
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speed of light
noun speeds of light · c
-
The speed of electromagnetic radiation, which in a perfect vacuum is equivalent to 299,792,458 metres per second.
Early physicists developed insightful methods for measuring the speed of light.
Similar: lightspeed, light speed, Einstein's constant, Einstein barrier
- A very rapid speed. When her cat figured out that a trip to the vet was in the offing, he took off towards the closet at the speed of light.
- A rate of travel of a signal equal to one cell per generation, the fastest possible speed in the Moore and von Neumann neighborhoods. In a single generation, a cell can only influence its nearest neighbours, and so the speed of light (by analogy with the speed of light in physics) is the maximum rate at which information can propagate.
Translations
Every language
noun the speed of electromagnetic radiation in a perfect vacuum
| Español | velocidad de la luz |
|---|---|
| 한국어 | 광속 gwangsok |
| 日本語 | 光速 kōsoku |
| 中文 | 光速 guāngsù |
| हिन्दी | प्रकाश का वेग prakāś kā veg |
| Português | velocidade da luz |
| Français | vitesse de la lumière |
| Deutsch | Lichtgeschwindigkeit |
| Italiano | velocità della luce |
| Ελληνικά | ταχύτητα του φωτός tachýtita tou fotós |
| Română | viteza luminii |
| Русский | ско́рость све́та skórostʹ svéta |
| Tiếng Việt | ttốc độ ánh sáng |
| العربية | سرعَة الضوء |
| עברית | מהירות האור |
Talk about this word "speed of light." Wiktionary, via Micwyn, micwyn.com/word/speed%20of%20light. Accessed 6 Nov. 2026. speed of light. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/speed%20of%20light "speed of light." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/speed%20of%20light.Cite this
@misc{speed_of_light_2026,
title = {speed of light},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/speed%20of%20light},
urldate = {2026-11-06}
}
