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
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The findings may allow researchers to better understand the extreme conditions of the comet’s planetary system — and even discern what the Milky Way galaxy was like long before our solar system appeared. Ashley Strickland, CNN Money, 1 May 2026 The $17 million project includes a solar system and battery storage that are now fully operational, marking a major step toward the city’s goal of 100% zero-carbon energy by 2040, officials said. City News Service, Daily News, 1 May 2026 This terrain is a time capsule from the earliest period of the solar system. Samantha Mathewson, Space.com, 1 May 2026 From 1929 until 2006, Pluto lived in the imagination of children and adults alike as the ninth and outermost planet in our solar system. Big Think, 30 Apr. 2026 See All Example Sentences for solar system

Word History

First Known Use

circa 1704, in the meaning defined above

Time Traveler
The first known use of solar system was circa 1704

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Cite this Entry

“Solar system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20system. Accessed 5 May. 2026.

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

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