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 ice giant getting booted out of the solar system isn't the thing that spared Jupiter's and Uranus' moons from a similar fate. Kiona N. Smith, Space.com, 29 May 2026 Every successful launch expands the market, and autonomous spacecraft have already proven the model, exploring Mars, flying past Pluto, and leaving the solar system without a single human aboard. Omar Kardoudi may 29, New Atlas, 29 May 2026 Fill in some of the scientific gaps about our solar system and the universe beyond with us. Regina G. Barber, NPR, 29 May 2026 New observatories and spacecraft missions are probing environments in our solar system that could potentially host life but have long remained hidden. Gideon Yoffe, The Conversation, 29 May 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 1 Jun. 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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