comets
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pluralof comet.plural
The grammatical form denoting more than one person, place, thing, or idea.
cometnouna celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and gas that may form a tail that streams away from the sun.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Halley's Comet is one of the most famous comets in our Solar System and has been observed from Earth for centuries.
From BBC ● Sep. 30, 2026
The software is designed to model collisions involving asteroids, comets, and planets.
From Science Daily ● Aug. 26, 2026
This occurs when the Earth passes through trials of debris from asteroids or comets.
From BBC ● Aug. 12, 2026
Another branch of their work is planetary defence, which involves identifying threats like comets and asteroids.
From Barron's ● Aug. 7, 2026
They pay almost no attention to all the moons and planets, asteroids and comets, quasars and pulsars, exploding galaxies, symbiotic stars, cataclysmic variables and X-ray sources that have been discovered since Ptolemy’s time.
From "Cosmos" by Carl Sagan
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