noun Download 🔗Share A being originating from outside of the Earth's atmosphere, from space, or from another planet; an alien Examples : "The children excitedly discussed whether the strange lights in the sky were caused by an extraterrestrial. " being space astronomy science mythology inhuman person Chat with AIVocabulary GamePractice Reading
adjective Download 🔗Share Originating from outside of the Earth's atmosphere, from space, or from another planet; alien to Earth or its environment. Examples : "Scientists are studying extraterrestrial signals that might come from other planets. " space astronomy science Chat with AIVocabulary GamePractice Reading