meteoroid
noun
me·te·or·oid
ˈmē-tē-ə-ˌrȯid 
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
Examples of meteoroid in a Sentence
Recent Examples on the Web
When these objects are still hurtling through space, they’re known as meteoroids.
—
Sarah Kuta, Smithsonian Magazine, 8 July 2025
Though lunar impacts have become less frequent over time, tiny meteoroids still create dents in the Moon every day.
—Jack Knudson, Discover Magazine, 4 Apr. 2025
But meteoroids make up for their small size with high velocities.
—IEEE Spectrum, 31 Mar. 2010
In the past, government data from a sensor network used to detect nuclear detonations has been used to help pinpoint the impact point of space junk or meteoroids.
—Eric MacK, Forbes.com, 10 May 2025
See All Example Sentences for meteoroid
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Sarah Kuta, Smithsonian Magazine, 8 July 2025
Though lunar impacts have become less frequent over time, tiny meteoroids still create dents in the Moon every day.
—Jack Knudson, Discover Magazine, 4 Apr. 2025
But meteoroids make up for their small size with high velocities.
—IEEE Spectrum, 31 Mar. 2010
In the past, government data from a sensor network used to detect nuclear detonations has been used to help pinpoint the impact point of space junk or meteoroids.
—Eric MacK, Forbes.com, 10 May 2025
See All Example Sentences for meteoroid
Cite this Entry
“Meteoroid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/meteoroid. Accessed 19 Jul. 2025.
Copy CitationKids Definition
meteoroid
noun
me·te·or·oid
ˈmēt-ē-ə-ˌrȯid
: a meteor revolving around the sun
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