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Meaning of SIDEREAL DAY

Pronunciation:  sI'deereeul dey

 
WordNet Dictionary
 
 Definition: 
[n]  the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day
 
 Synonyms: day
 
 See Also: sidereal time, time unit, unit of time

 

 

 

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