| speed of light | He calculated the speed of light. |
| speed of light | The speed of light is much greater than that of sound. |
| 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 |
| 光速 | [光 速] the speed of light #32,089 [Add to Longdo] |
| (mit) Lichtgeschwindigkeit { f } | (at) speed of light [Add to Longdo] |
| 光の速さ | [ひかりのはやさ, hikarinohayasa] (n) the speed of light [Add to Longdo] |
| 光速 | [こうそく, kousoku] (n) speed of light [Add to Longdo] |
| 光速度 | [こうそくど, kousokudo] (n) the speed of light [Add to Longdo] |