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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.

The Kent Kresa Space Gallery will feature a wide array of spacecraft, planetary probes, telescopes and more.

From Los Angeles Times • Apr. 13, 2026

Because planets form mostly from the same material as their star, the star's composition helps shape the chemistry of the entire planetary system.

From Science Daily • Apr. 6, 2026

“We don’t know because it’s never been done at a planetary scale before,” Webb says.

From The Wall Street Journal • Apr. 6, 2026

The Moon will appear to the astronauts "about the size of a basketball held at arm's length," Noah Petro, head of NASA's planetary geology lab, told AFP.

From Barron's • Apr. 5, 2026

It arrives on the planetary stage following four and a half billion years of other acts, and after looking about for a few thousand years declares itself in possession of eternal truths.

From "Cosmos" by Carl Sagan




Vocabulary lists containing planetary