asteroid

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Pronunciation[change]

  • enPR: ăs'tə-roid", IPA: /ˈæstəroɪd/
  • (file)

Noun[change]

Singular
asteroid

Plural
asteroids

  1. (countable) An asteroid is an object that is smaller than a planet that most often orbits a star, but it can sometimes orbit big planets.
    The asteroid orbited the star.
    The asteroid crossed over Jupiter's orbit.