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sidereal

   Also found in: Wikipedia 0.04 sec.
si·de·re·al  (s-dîr-l)
adj.
1. Of, relating to, or concerned with the stars or constellations; stellar.
2. Measured or determined by means of the apparent daily motion of the stars: sidereal time.

[From Latin sdereus, from sdus, sder-, constellation, star.]

sidereal [side-eer-ee-al]
Adjective
of or determined with reference to the stars: the sidereal time [Latin sidus a star]

sidereal  (s-dîr-l)
1. Relating to the stars or constellations.
2. Measured with respect to the background of fixed stars instead of the Sun.
ThesaurusLegend:  Synonyms Related Words Antonyms
Adj.1.sidereal - of or relating to the stars or constellations; "sidereal bodies"; "the sidereal system"
2.sidereal - (of divisions of time) determined by daily motion of the stars; "sidereal time"
civil - (of divisions of time) legally recognized in ordinary affairs of life; "the civil calendar"; "a civil day begins at mean midnight"

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Dim and wonderful is the vision I have conjured up in my mind of life spreading slowly from this little seed bed of the solar system throughout the inanimate vastness of sidereal space.
The whole sky, though lit by the sidereal rays, seemed black by contrast with the whiteness of the waters.
It is reserved for the practical genius of Americans to establish a communication with the sidereal world.
 
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