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 Beehive cluster also sits close enough to the ecliptic (the plane of the solar system as projected on the sky) that planets can appear to pass through it. Kenna Hughes-Castleberry, Space.com, 9 Jan. 2026 Stargazers who look up in January may be treated to a striking sight of numerous stars in space well beyond the borders of Earth's solar system. Eric Lagatta, USA Today, 9 Jan. 2026 What spinning space rocks can tell us Spinning space rocks can provide insight into the early formation of our solar system. Chris Young, Interesting Engineering, 8 Jan. 2026 Jimenez’s link-up role for Fulham is visible in his passing solar system, which shows the distance of his passes, the most common players receiving them and their average positions when doing so. Ahmed Walid, New York Times, 7 Jan. 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 11 Jan. 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

More from Merriam-Webster on solar system

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