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Definitions of sidereal
  1. (of divisions of time) determined by daily motion of the stars
    "sidereal time"
    Opposite:
  2. of or relating to the stars or constellations
    "sidereal bodies" "the sidereal system"
Examples of sidereal
  • "sidereal time"
  • "sidereal bodies"
  • "the sidereal system"
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