Wiktionary
n. (alternative form of lightspeed English)
WordNet
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: speed of light, c]
Usage examples of "light speed".
Just as you learned all about the Light Speed project, dive into this, too.
It can only be extended between sixty-five and seventy-five percent light speed.
Just as you learned all about the Light Speed project, dive in to this too.
If Shepherd Industries never discovered tachyons then there would never be light speed.
Slowly at first, but within only minutes they were cruising at twenty-five percent light speed.
Find the record of where we landed after our first leap to light speed.
Slowly at first, but within only minutes they were cruising at Twenty Five percent light speed.
The Earth continued to loom larger, but just as soon as light speed began, the Tachyon Drive reversed and the Destiny was at her programmed location slowing to a stop.
Judging from the way one and two have performed I'd guess about twenty five percent light speed.
Who would've thought we'd lose engine thrust just as we were approaching fifty percent light speed.