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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Two, the sun rotates about the center of gravity of the solar system, and comes slightly closer to or further away from the earth for a few months at a time, increasing or decreasing the solar irradiance. Ian Dexter Palmer, Forbes.com, 4 Aug. 2025 Often depicted in science fiction as a cosmically dramatic jump through an unknown, warped part of the solar system, wormholes, as far as astrophysicists are concerned, are just that — an object of science fiction. Madison Dapcevich, Discover Magazine, 1 Aug. 2025 This is something seen in our own solar system when comets from the outer region of our planetary system pass close to the sun, creating cometary tails and halos called comas. Robert Lea, Space.com, 31 July 2025 More simply, the discovery of Ammonite indicates that the outer solar system is more diverse and complex than once thought. Margherita Bassi, Smithsonian Magazine, 22 July 2025 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 19 Aug. 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

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