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

Meteors begin to ramp up several days before the peak, which means folks who want to wake up early to lie on a blanket or lawn chair to look up could see 25 to 50 meteoroids per hour. Meg Jones, Milwaukee Journal Sentinel, "Perseid meteor shower won't be great this year, but this weekend could be good for viewing shooting stars," 7 Aug. 2019 Located inside galaxies, these cosmic arrangements are made up of at least one star and all the objects that travel around it, including planets, dwarf planets, moons, asteroids, comets, and meteoroids. National Geographic, "The solar system, explained," 27 Mar. 2019 Hundreds of millions of meteoroids, many of them the size of sand grains, enter Earth’s atmosphere every day. Barry Lopez, Harper's magazine, "Polar Light," 10 Jan. 2019 Too small to be called planets, asteroids are rocky chunks that also orbit our sun along with the space rocks known as meteoroids. National Geographic, "The solar system, explained," 27 Mar. 2019 Witnesses reported loud explosions and video caught a meteoroid fireball streaking through the sky. Joe Pappalardo, Popular Mechanics, "For Just 2nd Time Ever, Meteor Hunters Recover Chunks of Rock They Tracked From Space," 9 July 2018 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

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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Statistics for meteoroid

Last Updated

17 Aug 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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formidable, illustrious, or eminent

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