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extraterrestrial

Extraterrestrial is defined as something from space.

(adjective)

An example of extraterrestiral would be intelligent life forms that come from another planet.

The definition of an extraterrestrial is an alien, or a hypothetical or fantasy figure of some intelligent being that lives on a planet other than earth.

(noun)

An example of an extraterrestrial is the alien E.T. from the movie or Alf from the TV show.

See extraterrestrial in Webster's New World College Dictionary

adjective

existing, taking place, or coming from outside the limits of the earth

noun

an extraterrestrial being, as in science fiction

See extraterrestrial in American Heritage Dictionary 4

adjective

Originating, located, or occurring outside Earth or its atmosphere: intelligent extraterrestrial life.

noun

An extraterrestrial being or life form.

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