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astronomical: Meaning and Definition of

as•tro•nom•i•cal

Pronunciation: (as"tru-nom'i-kul), [key]
— adj.
  1. of, pertaining to, or connected with astronomy.
  2. extremely large; exceedingly great; enormous: It takes an astronomical amount of money to build a car factory.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
Astronomer Royal astronomical clock
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