Hello, you have come here looking for the meaning of the word
light second. In DICTIOUS you will not only get to know all the dictionary meanings for the word
light second, but we will also tell you about its etymology, its characteristics and you will know how to say
light second in singular and plural. Everything you need to know about the word
light second you have here. The definition of the word
light second will help you to be more precise and correct when speaking or writing your texts. Knowing the definition of
light second, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
English
Noun
light second (plural light seconds)
- (astronomy, physics) A unit of length equal to the distance light travels in one second: about 300 megameters