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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Every new piece of data offers a glimpse at the space beyond our solar system. Jackie Flynn Mogensen, Scientific American, 28 Feb. 2026 Advertisement On Mona Island, federal agencies have concluded that the island’s older solar system is insufficient for current needs. Israel Melendez Ayala, Time, 28 Feb. 2026 Last February’s planet parade included seven planets — each one in our solar system besides Earth. Alexis Simmerman, Austin American Statesman, 27 Feb. 2026 The smallest planet in our solar system will appear white and will be low on the horizon. Lily Hautau, CNN Money, 27 Feb. 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 6 Mar. 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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