| / English Dictionary |
LIGHT HOUR
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The distance light travels in a vacuum in one hour; approximately one billion kilometers
Classified under:
Nouns denoting quantities and units of measure
Hypernyms ("light hour" is a kind of...):
astronomy unit (a linear unit used for astronomical distances)
Holonyms ("light hour" is a part of...):
light-year; light year (the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers)
YOU MAY ALSO LIKE
