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 299792458 meters per second
Light speed is approximately 186282 miles per second. Spelled as two words.
Light speed is approximately 186282 miles per second. Spelled as two words.
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speed of light; c; speed at which light travels
speed of sound
1 syllables
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