English dictionary
light hour
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
the distance light travels in a vacuum in one hour; approximately one billion kilometers
Source: WordNet 3.0
English dictionary
Definitions, examples, synonyms and antonyms from WordNet 3.0.
the distance light travels in a vacuum in one hour; approximately one billion kilometers
Source: WordNet 3.0