Usually means: Life originating outside of Earth.
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We found 24 dictionaries that define the word extraterrestrial:

General (21 matching dictionaries)
  1. extraterrestrial: Merriam-Webster
  2. extraterrestrial: Oxford Learner's Dictionaries
  3. extraterrestrial: American Heritage Dictionary of the English Language
  4. extraterrestrial: Collins English Dictionary
  5. extraterrestrial: Vocabulary.com
  6. Extraterrestrial, extraterrestrial: Wordnik
  7. extraterrestrial: Cambridge Advanced Learner's Dictionary
  8. extraterrestrial: Wiktionary
  9. extraterrestrial: Webster's New World College Dictionary, 4th Ed.
  10. extraterrestrial: The Wordsmyth English Dictionary-Thesaurus
  11. extraterrestrial: Infoplease Dictionary
  12. extraterrestrial: Dictionary.com
  13. extraterrestrial: Cambridge Essential American English Dictionary
  14. Extraterrestrial (TV documentary), Extraterrestrial (TV program), Extraterrestrial (song), Extraterrestrial: Wikipedia, the Free Encyclopedia
  15. extraterrestrial: Rhymezone
  16. extraterrestrial: FreeDictionary.org
  17. extraterrestrial: Mnemonic Dictionary
  18. extraterrestrial: TheFreeDictionary.com
  19. extraterrestrial: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)
  1. extraterrestrial: Encyclopedia

Miscellaneous (2 matching dictionaries)
  1. Extraterrestrial: Glossary of Terms in Parapsychology
  2. extraterrestrial: The Skeptic's Dictionary

(Note: See extraterrestrials as well.)

Definitions from Wiktionary (
)
American English Definition British English Definition
adjective:  Originating from outside of the Earth's atmosphere, from space, or from another planet; alien to Earth or its environment.
noun:  A being originating from outside of the Earth's atmosphere, from space, or from another planet; an alien.

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    lime green,     neon green,     electric blue,     metallic silver,     ultraviolet, more...



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