me·​te·​or·​oid | \ ˈmē-tē-ə-ˌrȯid How to pronounce meteoroid (audio) \

Definition of meteoroid

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

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Other Words from meteoroid

meteoroidal \ ˌmē-​tē-​ə-​ˈrȯi-​dᵊl How to pronounce meteoroidal (audio) \ adjective

Examples of meteoroid in a Sentence

Recent Examples on the Web

Even a tiny meteor that burned up in our atmosphere sent an alarming meteoroid arcing across the Michigan sky a few days ago. Avi Selk, Washington Post, "Let’s talk about the big scary asteroid that’s NOT going to hit Earth," 21 Jan. 2018 Those processes include bombardment by meteoroids and charged particles from Jupiter's powerful radiation belts. Mike Wall,, "Jupiter Moon Europa's Jagged Ice Towers Could Imperil Robot Landers," 8 Oct. 2018 Noctilucent clouds form around the poles in the summer months, when ice crystallizes around shards of disintegrating meteoroids, volcanic dust, and even rocket plumes 50 miles above the surface, according to NASA. Rachel Becker, The Verge, "How to capture the eerie nighttime clouds of climate change," 6 July 2018 But no one could tell whether the gas was a byproduct of microbial life, the result of geological reactions or a side effect of meteoroids and cosmic dust raining down on the planet. Robert Lee Hotz, WSJ, "Mars Rover Curiosity Finds More Clues to the Potential for Life," 7 June 2018 Cooke estimated the meteoroid was about 1 to 2 yards across and weighed more than a metric ton. Lisa Gutierrez, kansascity, "An explanation for the Michigan fireball and quake, and a chance to pick up pieces," 17 Jan. 2018 Tiny meteoroids are likely to blame for these Martian metals. Erin Blakemore, Smithsonian, "Mars Has Metal in Its Atmosphere," 13 Apr. 2017 The meteoroids slam into the atmosphere at high speeds and vaporize. Erin Blakemore, Smithsonian, "Mars Has Metal in Its Atmosphere," 13 Apr. 2017 Electronic signals indicated that Skylab’s heat shield, which protected the space laboratory from meteoroids and high temperatures, had been sheared off during liftoff. Matt Schudel, Washington Post, "Paul Weitz, astronaut who helped repair Skylab and commanded space shuttle, dies at 85," 24 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'meteoroid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of meteoroid

1865, in the meaning defined at sense 1

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Last Updated

16 Mar 2019

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Time Traveler for meteoroid

The first known use of meteoroid was in 1865

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More from Merriam-Webster on meteoroid

Rhyming Dictionary: Words that rhyme with meteoroid

Britannica English: Translation of meteoroid for Arabic Speakers

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a shady place in a garden or forest

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