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Definition of astronomical


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as·tro·nom·i·cal  audio  (str-nm-kl) KEY  also as·tro·nom·ic  (-nmk) KEY 

ADJECTIVE:
  1. Of or relating to astronomy.
  2. Of enormous magnitude; immense: an astronomical increase in the deficit.


OTHER FORMS:
astro·nomi·cal·ly(Adverb)


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