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astronomy

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English

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Etymology

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

Pronunciation

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Noun

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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.
    • 2011 October 9, Meg Urry, “Dark energy, science’s biggest mystery”, in CNN[1]:
      The fact is, dark energy is the biggest mystery in science. It has driven a huge amount of research in the past decade, and was a key driver in last year’s “New Worlds, New Horizons” report from the National Academies of Science, which prioritized future astronomy and astrophysics projects.
  2. (obsolete) Astrology.

Usage notes

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  • 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.

Hypernyms

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Hyponyms

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Derived terms

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Translations

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See also

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References

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  • astronomy”, in OneLook Dictionary Search.