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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However, the solar system is vast, and the Sun’s rays grow weak once a mission pushes past Mars. — Mrigakshi Dixit, Interesting Engineering, 7 Nov. 2026 This is critical because the search for Planet Nine is motivated primarily by that world’s predicted effects on the orbits of other, smaller objects in the outer solar system. — Phil Plait, Scientific American, 6 Nov. 2026 Voyager 1's close-up view of Saturn's rings as well as the moon Titan — which may have prebiotic or pre-life chemistry — altered the spacecraft's trajectory to put it high above the plane of the solar system. — Elizabeth Howell, Space.com, 5 Nov. 2026 Utilities may need to connect meters, batteries, solar systems and EV infrastructure. — Michael De Nil, Forbes.com, 5 Nov. 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 10 Nov. 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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