Overview of noun extraterrestrial

The noun extraterrestrial has 1 sense

• extraterrestrial being, extraterrestrial, alien -- (a form of life assumed to exist outside the Earth or its atmosphere)

Overview of adj extraterrestrial

The adj extraterrestrial has 1 sense

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