: a celestial body that appears as a fuzzy head usually surrounding a bright nucleus, that has a usually highly eccentric orbit, that consists primarily of ice and dust, and that often develops one or more long tails when near the sun
Examples of comet in a Sentence
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The third point is roughly where the comet will be.
—
Jamie Carter, Forbes, 2 Nov. 2024
By early November, the comet will completely fade from view.
—Christopher Kuhagen, Journal Sentinel, 18 Oct. 2024
Where the meteors come from Meteor showers occur when Earth passes through the debris trail left behind by a comet or asteroid.
—Sarah Kuta, Smithsonian Magazine, 17 Oct. 2024
Saturn and an Oort cloud comet will also be visible to the naked eye.
—Clara Harter, Los Angeles Times, 16 Oct. 2024
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Jamie Carter, Forbes, 2 Nov. 2024
By early November, the comet will completely fade from view.
—Christopher Kuhagen, Journal Sentinel, 18 Oct. 2024
Where the meteors come from Meteor showers occur when Earth passes through the debris trail left behind by a comet or asteroid.
—Sarah Kuta, Smithsonian Magazine, 17 Oct. 2024
Saturn and an Oort cloud comet will also be visible to the naked eye.
—Clara Harter, Los Angeles Times, 16 Oct. 2024
See all Example Sentences for comet
Dictionary Entries Near comet
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“Comet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/comet. Accessed 29 Nov. 2024.
Copy CitationKids Definition
comet
noun
com·et
ˈkäm-ət 
: a bright heavenly body that develops a cloudy tail as it moves closer to the sun in its orbit
Etymology
Old English cometa "comet," from Latin cometa (same meaning), from Greek komētēs, literally, "long-haired," derived from komē "hair" — related to coma entry 2
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