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solar system
noun
: the sun together with the group of celestial bodies that are held by its attraction and revolve around it
also
: a similar system centered on another star
Examples of solar system in a Sentence
Recent Examples on the Web
Asteroids in our solar system are mostly found in the asteroid belt between Mars and Jupiter.
—Joel Thayer, Newsweek, 27 Jan. 2025
Related article Astronomers discover two populations of unusual dark comets in our solar system
The discovery of Kamo’oalewa excited asteroid scientists who were eager to find more, but no other candidates have emerged until 2024 PT5.
—Ashley Strickland, CNN, 27 Jan. 2025
For comparison, Neptune holds the record for the fastest winds in our solar system; the winds on WASP-127b are an astonishing 18 times stronger.
—Sharmila Kuthunur, Space.com, 24 Jan. 2025
The fastest wind ever measured in our solar system was on Neptune, with gusts of more than 1,100 miles per hour.
—Margherita Bassi, Smithsonian Magazine, 23 Jan. 2025
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Word History
First Known Use
circa 1704, in the meaning defined above
Dictionary Entries Near solar system
Cite this Entry
“Solar system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20system. Accessed 2 Feb. 2025.
Kids Definition
solar system
noun
: a star with the group of heavenly bodies that revolve around it
especially
: the sun with the planets, moons, asteroids, and comets that orbit it
More from Merriam-Webster on solar system
Britannica English: Translation of solar system for Arabic Speakers
Britannica.com: Encyclopedia article about solar system
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