terrestrial
Terrestrial (adj) means relating to the Earth or its land, as opposed to sea, sky, or space. Example: “Terrestrial life is thought to have begun in the oceans.”
How to use terrestrial
Learner’s notesIn plain EnglishRelating to land or Earth — used for wildlife habitats, planets, and (in the UK) regular TV broadcasting.
Word forms
Fill the gap
Can you complete this real example?
_____ life is thought to have begun in the oceans.
Etymology
From Latin terrestris, "of the earth," from terra, "land, earth."