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Meaning of extraterrestrial

ex•tra•ter•res•tri•al

Pronunciation: (ek"stru-tu-res'trē-ul), [key]
— adj.
  1. outside, or originating outside, the limits of the earth.
—n.
  1. an extraterrestrial being: a science fiction novel about extraterrestrials conquering the earth.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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