Definition of Light Second in English :

Define Light Second in English

Light Second meaning in English

Meaning of Light Second in English

Pronunciation of Light Second in English

Light Second pronunciation in English

Pronounce Light Second in English

Light Second

see synonyms of light second

Noun

1. light second

the distance light travels in a vacuum in one second; approximately 300,000 kilometers

WordNet Lexical Database for English. Princeton University. 2010.