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Definitions from the Web

Terrestrial

Noun

A terrestrial is an inhabitant of the Earth or a planet.

Sample sentence: Astronomers search for signs of terrestrial life on other planets.

Adjective

The term terrestrial is used to describe things that relate to or exist on the Earth or a planet.

Sample sentence: The terrestrial ecosystem includes forests, grasslands, and deserts.

Search for books about terrestrial inhabitants on Amazon

Search for books about terrestrial ecosystems on Amazon