astronomy

EnglishEdit

 
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EtymologyEdit

From Middle English astronomie, astronemy, from Old French astronomie, equivalent to astro- +‎ -nomy.

PronunciationEdit

NounEdit

astronomy (usually uncountable, plural astronomies)

  1. The study of the physical universe beyond the Earth's atmosphere, including the process of mapping locations and properties of the matter and radiation in the universe.
  2. (obsolete) Astrology.
    • 1609, William Shakespeare, Sonnet 14:
      Not from the stars do I my judgment pluck;
      And yet methinks I have astronomy ...

Usage notesEdit

  • The study of the physical processes which control matter and energy in the universe is commonly called astrophysics. The investigation of the origin, evolution, and fate of the universe itself is called cosmology.

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