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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Likewise, primitive asteroidal bodies are somewhat like fossilized remnants of the building blocks of the solar system's planets, including Earth. Keith Cooper, Space.com, 19 June 2026 Earth-impacting shrapnel from those primordial upheavals may have helped seed our planet with the precursors for life, delivering water and organic compounds from the dark, icy depths of the outer solar system. Lee Billings, Scientific American, 18 June 2026 It's thought to be the result of collisions with various protoplanets and other massive objects during the formation of the solar system billions of years ago, according to NASA. Janet Loehrke, USA Today, 17 June 2026 Meteorites are quite rare and important to the study of the early solar system. Adam Lark, The Conversation, 16 June 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 21 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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