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Definitions

asteroid

[as-tuh-roid] / ˈæs təˌrɔɪd /


NOUN
satellite
Synonyms


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.

Early Earth experienced frequent asteroid impacts, making these environments likely common.

From Science Daily • Apr. 3, 2026

Instead, liquid water likely interacted with different parts of the asteroid under varying conditions, creating a patchwork of chemical environments.

From Science Daily • Mar. 31, 2026

In a classic episode, Elroy goes to an asteroid on a school field trip.

From The Wall Street Journal • Mar. 30, 2026

Located in the main asteroid belt between Mars and Jupiter, Psyche ranks as the 10th-most massive asteroid and the largest known object made primarily of metal, measuring about 140 miles across.

From Science Daily • Mar. 17, 2026

Even if every asteroid in the solar system had a name and known orbit, no one could say what perturbations might send any of them hurtling toward us.

From "A Short History of Nearly Everything" by Bill Bryson




Vocabulary lists containing asteroid