HyperDic: speed_of_light

English > 1 sense of the expression speed of light:
NOUNtimespeed of light, light speed, cthe speed at which light travels in a vacuum
English > speed of light: 1 sense > noun 1, time
MeaningThe 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.
Synonymslight speed, c
BroaderconstantA number representing a quantity assumed to have a fixed value in a specified mathematical context
speed, velocitydistance travelled per unit time
Spanishvelocidad de la luz
Catalanvelocitat de la llum

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