Back
English Dictionary
Learn English
Learn grammar
List of words
Study your cards
Hang On, Man!
Audio Books
More apps
SPONSORED LINKS
Recent searches
barrel
louis sullivan
remember
SPONSORED LINKS
SPONSORED LINKS
simplify
abstractedly
benign
go hang
attachments
tables
exploitation
Hide translation
light speed
light speed
/ˈlaɪt spiːd/
noun
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
(
c
,
light speed
,
speed of light
)
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
Back
Next
Language