Definition of Light Hour in English :
Define Light Hour in English
Light Hour meaning in English
Meaning of Light Hour in English
Pronunciation of Light Hour in English
Light Hour pronunciation in English
Pronounce Light Hour in English
Light Hour
see synonyms of light hourNoun
1. light hour
the distance light travels in a vacuum in one hour; approximately one billion kilometers
WordNet Lexical Database for English. Princeton University. 2010.