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Definitions

planetary

[plan-i-ter-ee] / ˈplæn ɪˌtɛr i /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Current models suggest rocky planets form near stars because intense radiation strips away gas surrounding developing planetary cores.

From Science Daily • May 21, 2026

ESA Cheops project scientist Maximilian Günther says the discovery highlights how much scientists still do not understand about planetary origins.

From Science Daily • May 21, 2026

Lead author Michael Wong, a planetary scientist at UC Berkeley's Space Sciences Laboratory, said studying storms on other planets can help scientists better understand weather on Earth.

From Science Daily • May 21, 2026

Multiple planetary embryos emerge at roughly the same time and gradually evolve over millions of years into full planets.

From Science Daily • May 21, 2026

Why are the planetary orbits nearly circular and neatly separated one from the other?

From "Cosmos" by Carl Sagan




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