Meaning & Definition of word "Extraterrestrial"

Extraterrestrial

/ˌɛkstrətəˈrɛstriəl/

noun:

  • 1. A hypothetical or fictional being from outer space.
    • Example: Many people believe that extraterrestrials have visited Earth throughout history.
  • 2. An inhabitant of a planet other than Earth.
    • Example: The discovery of new exoplanets raises the possibility of extraterrestrial civilizations.

adjective:

  • 1. Of or from outside the Earth or its atmosphere.
    • Example: Scientists are searching for extraterrestrial life forms on distant planets.
  • 2. Relating to or denoting beings or phenomena that originate beyond Earth.
    • Example: The movie featured extraterrestrial beings visiting Earth.

Etymology

The word comes from the Latin 'extra' meaning 'outside' and 'terrestris' meaning 'earthly'.

Common Phrases and Expressions

extraterrestrial intelligence:

The hypothetical existence of intelligent life beyond Earth.

extraterrestrial life:

Life forms that may exist outside our planet.

Related Words

alien:

A being from another planet.

UFO:

An unidentified flying object, often associated with extraterrestrial life.

Slang Meanings of extraterrestrial

Meaning: ET

Example Sentence: Some people believe that ETs visit Earth and interact with humans.

Meaning: space dude

Example Sentence: He often talks about meeting a space dude who gave him insights about the universe.