Definition of sidereal

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  • sidereal is a valid Scrabble US word with a point value of 9
  • sidereal is a valid Scrabble UK word with a point value of 9
  • sidereal is a valid Words with friends word with a point value of 10

Definition of sidereal

  • (of divisions of time) determined by daily motion of the stars ()

    Examples

    1. sidereal time
  • of or relating to the stars or constellations ()

    Examples

    1. sidereal bodies
    2. the sidereal system

See definition of sidereal in Merriam Webster