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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Furthermore, the ability to operate robotic explorers and harvesting/processing machines at solar system distances by combining quantum communications with AI-level on-site intelligence will enable us to go anywhere, in physical or electronic form. Rick Tumlinson, Space.com, 25 Sep. 2025 Surrounding our solar system is a natural and enigmatic cosmic shield called the heliosphere — and a new mission has launched to help astronomers better understand it. Ashley Strickland, CNN Money, 24 Sep. 2025 Despite the number of PHAs out in our solar system, none is likely to hit Earth any time soon. Soo Kim, MSNBC Newsweek, 23 Sep. 2025 In fact, three decades since the first exoplanet was found, NASA has recorded a milestone 6,000-plus worlds beyond our solar system. Eric Lagatta, USA Today, 22 Sep. 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 29 Sep. 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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