Simple Definition of meteor

from our Learner's Dictionary

meteor

noun

plural meteors
: a piece of rock or metal that burns and glows brightly in the sky as it falls from outer space into the Earth's atmosphere
a meteor shower [=a large number of meteors seen in a short time]

Cite this Entry

“Meteor.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/meteor. Accessed 19 Jun. 2026.

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