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meteoroid

noun

me·​te·​or·​oid ˈmē-tē-ə-ˌrȯid How to pronounce meteoroid (audio)
1
: a meteor particle itself without relation to the phenomena it produces when entering the earth's atmosphere
2
: a meteor in orbit around the sun
meteoroidal adjective

Examples of meteoroid in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
During that same interval, Maslov is also suggesting an interaction with a trail of meteoroids expelled by comet Tempel-Tuttle in 1699. Joe Rao, Space.com, 14 Nov. 2025 The debris – space rocks known as meteoroids – collides with Earth's atmosphere at high speed and disintegrates, creating fiery and colorful streaks in the sky, according to NASA. Eric Lagatta, USA Today, 13 Nov. 2025 The researchers foresee using the material to make lightweight shields for spacecraft, to protect them from tiny meteoroids. Carl Zimmer, New York Times, 9 Nov. 2025 As the trailer shows, all hell breaks loose — both on the spacecraft and back on earth, where meteoroids or debris rain down all over Los Angeles. Patrick Gomez, Entertainment Weekly, 2 Oct. 2025 See All Example Sentences for meteoroid

Word History

First Known Use

1865, in the meaning defined at sense 1

Time Traveler
The first known use of meteoroid was in 1865

Browse Nearby Words

Cite this Entry

“Meteoroid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/meteoroid. Accessed 29 Nov. 2025.

Kids Definition

meteoroid

noun
me·​te·​or·​oid ˈmēt-ē-ə-ˌrȯid How to pronounce meteoroid (audio)
: a meteor revolving around the sun
Last Updated: - Updated example sentences
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