Dictionary Definition

extraterrestrial adj : originating or located or occurring outside Earth or its atmosphere; "is there extraterrestrial life?" n : a form of life assumed to exist outside the Earth or its atmosphere [syn: extraterrestrial being, alien]

User Contributed Dictionary

English

Etymology

Derived from Latin extra meaning "outside" + terrestris meaning "of or pertaining to the earth" (from terra meaning "earth, land") + English –al

Pronunciation

ipacregion Canada

Hyphenation

ex·tra·ter·res·tri·al

Adjective

extraterrestrial
  1. Originating from outside of the Earth's atmosphere, from space, or from another planet; alien to Earth or its environment.

Translations

originating from outside of the Earth

Noun

  1. A being originating from outside of the Earth's atmosphere, from space, or from another planet; an alien

Related terms

Translations
a being originating from outside of the Earth

Extensive Definition

Extraterrestrial (or Extra-terrestrial) may refer to any object or being beyond (extra) the planet Earth (terrestrial). It is derived from the Latin extra ("outside", "outwards") and terrestris ("earthly", "of or relating to the Earth"). It may refer to:
extraterrestrial in German: Extraterrestrisch
extraterrestrial in Dutch: Buitenaards
extraterrestrial in Swedish: Utomjordisk

Synonyms, Antonyms and Related Words

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