SPEED OF LIGHT as NOUN

1. Meaning
   • 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
   Synonym(s)
   • c (what does c mean?)
   • light speed (what does light speed mean?)
   Hypernyms(s) speed of light is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • speed (what does speed mean?)
   • velocity (what does velocity mean?)
   • constant (what does constant mean?)