Definition of extraterrestrial Extraterrestrial

/ɛˌkstɹʌtɚɛˈstɹiʌl/ - [ekstruterestreeul] - ex•tra•ter•res•tri•al

We found 5 definitions of extraterrestrial from 4 different sources.

What does extraterrestrial mean?

Adjective
extraterrestrial - originating or located or occurring outside Earth or its atmosphere; "is there extraterrestrial life?"

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extraterrestrial (Noun)
A being originating from outside of the Earth's atmosphere, from space, or from another planet; an alien.
extraterrestrial (Adjective)
Originating from outside of the Earth's atmosphere, from space, or from another planet; alien to Earth or its environment.