| / English Dictionary |
LIGHT SPEED
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 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
Synonyms:
c; light speed; speed of light
Classified under:
Nouns denoting time and temporal relations
Hypernyms ("light speed" is a kind of...):
constant (a number representing a quantity assumed to have a fixed value in a specified mathematical context)
speed; velocity (distance travelled per unit time)
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