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  • word of the day

    sidereal day

    sidereal day - 365bet中国官方网站 definition and meaning for word sidereal day

    Definition
    (noun) 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

  • Word used in video below:
    text: right Monday one day Tuesday two day
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