VDict - Definition of light hour

English - English (Wordnet) dictionary

light hour

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Noun

the distance light travels in a vacuum in one hour; approximately one billion kilometers

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Words pronounced/spelled similarly to "light hour":
light air light hour light year
Words contain "light hour" in its definition in English - English (Wordnet) dictionary:
hour hourly light hour none watt-hour celestial longitude right ascension diffused window mental strain more...

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