extraterrestrial
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/ˌekstrətəˈrestriəl/
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/ˌekstrətəˈrestriəl/
A being from a planet other than Earth, often found in stories or movies.
Many people believe that extraterrestrials might exist in the universe.
Related to life or things that come from a place outside of Earth.
Scientists are studying extraterrestrial rocks to learn more about the universe.