Definitions
There is 1 meaning of the phrase
Light Speed.
Light Speed - as a noun
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
Synonyms (Exact Relations)
cspeed of lightExample Sentences
"Scientists are trying to find a way to travel at light speed."
"The concept of light speed is often used in science fiction movies."
"A spacecraft would need incredible energy to reach light speed."
"Theoretically, nothing with mass can travel at light speed."
"Many theories suggest that particles can exceed light speed in certain conditions."
