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astronomical clock

noun

a clock indicating or representing the movements of the sun or planets, the phases of the moon, or the sky visible at a given time, used as a means of establishing time or for additional information, as locating celestial bodies or timing their movement.
a clock used for observing the apparent time of the meridian passages of heavenly bodies.

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Nearby words

  1. astronautics,
  2. astronavigation,
  3. astronomer,
  4. astronomer royal,
  5. astronomical,
  6. astronomical distance,
  7. astronomical frame of reference,
  8. astronomical refraction,
  9. astronomical telescope,
  10. astronomical triangle

Origin of astronomical clock

First recorded in 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for astronomical clock

astronomical clock

noun

a complex clock showing astronomical phenomena, such as the phases of the moon
any clock showing sidereal time used in observatories
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012