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Noun: extraterrestrial being
  1. A form of life assumed to exist outside the Earth or its atmosphere
    - extraterrestrial, alien, ET

Derived forms: extraterrestrial beings

Type of: hypothetical creature

Encyclopedia: Extraterrestrial being

Nearest

extraordinariness
extraordinary
extrapolate
extrapolation
extrasensory
extrasensory perception
extrasolar
extrasystole
extrasystolic
extraterrestrial
extraterrestrial being
extraterrestrial object
extraterritorial
extraterritoriality
extrauterine gestation
extrauterine pregnancy
extravagance
extravagancy
extravagant
extravagantly
extravaganza