Exobiology Glossary

noun a hypothetical or fictional being from outer space

adjective relating to or characteristic of beings from outer space

• Scientists have been studying the possibility of extraterrestrial life for decades.
• Have you ever wondered if there are extraterrestrial beings out there?
• I heard a conspiracy theory about extraterrestrials living among us.
• Her artistic style is so unique, it's like something extraterrestrial.