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Uranus

/juːˈreɪnəs/ · u·ran·us
proper noun
  1. The seventh planet in our solar system, known for its tilted axis and ring system. The astronomer spent years studying the planet Uranus, fascinated by its unique rotation.
noun
  1. A unit of measurement for astronomical distances, equal to 1.798 x 10^11 meters. The spacecraft traveled 10 billion kilometers, or 5.6 billion Uranuses, to reach the distant star.
Did you know? The discovery of Uranus in 1781 by William Herschel was a significant milestone in the history of astronomy, as it provided evidence for the existence of other planets beyond Saturn.
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Written by Lexi Wordsworth, Dictionary Editor 1 lookups Added Aug 6, 2026