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
It's believed that the five-year periodicity is caused by the meteoroids being trapped in a resonance with Jupiter.
—
Jamie Carter, Forbes.com, 11 Sep. 2025
Looking at the standard sizes of satellites and the number of meteoroids raining down, the paper’s co-authors estimate that if 2024 YR4 were to make lunar impact, hundreds to thousands of sand-grain-size impact fragments could strike satellites within a few days.
—Phil Plait, Scientific American, 21 Aug. 2025
The meteorite — a remnant after a comet, asteroid or meteoroid survives passing through Earth’s atmosphere — was discovered in Niger’s vast, arid and remote Agadez region in November 2023 by a meteorite hunter, according to its Sotheby’s catalog note.
—Ashley Strickland, CNN Money, 14 Aug. 2025
Meteor showers occur when Earth passes through a dense stream of meteoroids left behind by a comet's orbit.
—Amanda Castro
hannah Parry
anna Commander, MSNBC Newsweek, 12 Aug. 2025
See All Example Sentences for meteoroid
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Jamie Carter, Forbes.com, 11 Sep. 2025
Looking at the standard sizes of satellites and the number of meteoroids raining down, the paper’s co-authors estimate that if 2024 YR4 were to make lunar impact, hundreds to thousands of sand-grain-size impact fragments could strike satellites within a few days.
—Phil Plait, Scientific American, 21 Aug. 2025
The meteorite — a remnant after a comet, asteroid or meteoroid survives passing through Earth’s atmosphere — was discovered in Niger’s vast, arid and remote Agadez region in November 2023 by a meteorite hunter, according to its Sotheby’s catalog note.
—Ashley Strickland, CNN Money, 14 Aug. 2025
Meteor showers occur when Earth passes through a dense stream of meteoroids left behind by a comet's orbit.
—Amanda Castro
hannah Parry
anna Commander, MSNBC Newsweek, 12 Aug. 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 17 Sep. 2025.
Copy CitationKids Definition
meteoroid
noun
me·te·or·oid
ˈmēt-ē-ə-ˌrȯid
: a meteor revolving around the sun
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