| / English Dictionary |
LIGHT SECOND
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The distance light travels in a vacuum in one second; approximately 300,000 kilometers
Classified under:
Nouns denoting quantities and units of measure
Hypernyms ("light second" is a kind of...):
astronomy unit (a linear unit used for astronomical distances)
Holonyms ("light second" 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)
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